The scene starts with Y/N and Natasha walking to his dorm as felt his doppleganger vanished.

Y/N: (thoughts) Looks like my clone disappeared. I still haven't figured out who the infiltrator was.

Natasha: Is something wrong, Darling?

Y/N: Oh, nothing. Just thinking about what a good time I had this night.

Natasha: (smile) I feel the same way. (thoughts, seductive smile) Though, things are about to get more fun and exciting~.

The two eventually went inside his dorm.

Y/N: Okay, is there anything I could get you?

Natasha: (seductive smile) How's about a simple drink~?

Y/N: Sure. If it's-

Before he could finish his sentence, Natasha opened the bottle and gave Y/N the potion to his mouth in which he coughed up a bit because of the unexpected move she just did to him. Y/N widen his eyes as Natasha pours the pink liquid in his mouth until the potion is emptied. 

Y/N: (coughs a bit) Hey, what did you just do?!

Natasha: (seductive smirk) Oh just something I wanna see something extraordinary for myself~.

Before he could ask, Y/N groans as he holds his body and he suddenly started to feel pain and hot? 

Y/N: (groans) W-What's happening to me?!

Y/N's body was slowly transforming into his hot and sexy female counter part while Natasha was excited to see on how he looks as a female since she gained the description of how good looking he looks as a woman and wanted to see it for herself.

His body gets shorter and slowly gains and earns a slight feminine shape: his butt gets bigger in shape and size, his hips and waist becoming more womanly, and his stomach gets thinner than before. The breasts on his chest grow out, while his manhood disappears, being replaced by his new womanhood. His hair gets longer, reaching down past his shoulders, while his arms and legs get slimmer, and his skin softens, along with his face changing shape.

Y/N: No way... am I...?

Y/N looked at the convenient mirror in their room that just appeared and was confirmed he was back into being the thicc, yet beautiful, female version of himself when he transformed. 

Hell, some the clothing he was wearing for the dance still fit him only it was really tight on both his big breasts that were bigger than Yang and Glynda and rounder while also having the big ass and thighs that beat both Blake on the Booty department and Weiss on the thighs.

Meanwhile Natasha was surprised by how beautiful and how developed he was had a girl. Especially when she looked at Y/N, that had almost big breasts almost the size of her's while also seeing his thighs and ass being in almost similar seize, although her face instantly turned a bit of lust just because of seeing him has a beautiful woman.

Y/N: I can't believe I'm a girl again...

Natasha: (seductive smirk) And I can't believe how hot and attractive you are as a girl, Darling~.

Y/N: (blush) H-Huh?

Y/N then got tackled to the bed by Natasha.

Y/N: (blush) H-Hey! W-What are you...

Natasha placed a finger on Y/N's mouth and he or rather she saw the big seductive smirk plastered all over Natasha face and she slowly was rubbing the now large breasts that were almost the same size has hers.

Y/N moans in both pleasure and pain due to her breasts, thighs, and ass tucked in her dance outfit.

Y/N: (blush) My outfit... it's so tight...

Natasha: (seductive smirk) Oh don't worry Darling, let me help you take them off~.

Natasha began taking off Y/N's clothes. She first took off Y/N's top and once she did, Y/N's giant breasts bounced off considering the fact he didn't have nothing underneath since he turned into a girl. 

Natasha had of look of shock, considering Team RWBY were telling the truth that they were really almost as big as hers. Y/N gasps as she covers her breasts while blushing in embarrassment. 

Natasha: (astonished) Oh my~. They really are almost bigger than mine!

Y/N: (embarrassed blush) Do-don't look so closely!....

Natasha giggled before she starts undoing Y/N's pants.

Natasha: (seductive smirk) Don't worry Darling. You don't have to be embarrassed Infront of me, your breasts are simply beautiful as well the type I really like. (bites her bottom lips) But now let's see how good you look without this pants of yours~.

Natasha took off the belt, she then pulled down the pants along with the shorts.

Y/N: (gasp and blush) Eek!!

Natasha: (widen eyes) Ohh~. (seductive Smirk grows) I like what I'm seeing here~.

She was seeing Y/N elegant, but thicc thighs along with her big, round, and soft ass.

Y/N: (blush) This is so weird...

Natasha: (seductive smirk) Oh don't worry, you look great. Especially what you are packing, your ass really is almost bigger than mine. Although, (puts her hands on Y/N's ass and squeezed it) it seems yours is actually softer than mine, and even rounder~.

Y/N: (moan) Ah~! Hey~. Why are you- Ah~!

Natasha: (seductive smirk) I just wanna feel this beautiful ass of yours. And I'm enjoying it, especially the sexy moans that you're producing right now Darling~.

Y/N: (moan) Ah~! Your hands~... Uh~!

Natasha: (seductive smirk) You like them Baby?

Y/N: (moan) They feel~... Ah~! So good~.

Natasha: (seductive smirk) I'm glad it does, because I'm really starting to love this more Darling...Not to mention I'm getting a bit more aroused because of it~.

Y/N: (moan) Really?

Natasha: (nods) Yes Darling, very arousing~.

Y/N: (blush) Well, the girls did say I'm cute and beautiful when I'm a girl. They even think of this as undercover disguise, though I'm not very sure if I like it or not.

Natasha: (smile) Well I think they're telling the truth about you being beautiful and cute not to mention hot too. Plus, I think this would work perfectly undercover and it would be such a waste to not use this beautiful and THICC~. This girl version of your's looks incredible and I love it~.

Y/N: (surprised) You mean it? You don't mind me being a girl?

Natasha: (surprised) Oh Darling, why would you say that? Of course I don't mind you being a girl. Remember what I told you earlier in the dance?

Y/N: That you love me and nothing will change?

Natasha: (smile) Exactly, so don't worry Darling. No matter what, wether you being a boy or a girl, it doesn't change on how I truly feel, because my love for you will always be true and that will never, ever change~.

Y/N looked at her with a gasp of surprised along with a blush on her face.

Y/N: (blush) In that case... Would like to do it with me? I may not have a dick as I once had as a boy, but...

Natasha: (smile) Of course. I will miss that part, but I think we're gonna have a very (seductive smirk grows) very good time~.

Y/N: (blush, nodded) I'm ready.

Natasha: (seductive smirk) Then let the fun begin~.

(Warning: lemon scene! If you're under 18 or you don't like this, skip it till you've reached the end) 

Natasha took off her dance outfit slowly until her body was completely naked as she gave Y/N a kiss on the mouth. Y/N slowly wrapping around her arms on her waist while Natasha doing the same on her neck and both of their big breasts pressing against each other enjoying the incredible sensation of the kiss they were giving off and both of them feeling horny every second of it. 

Y/N: (broke the kiss, panting) You kiss perfect~... You're making me feel horny already~.

Natasha: And the same could be said for you. Even as a girl, you are still able to make me so horny~.

Y/N: (blush) T-Thanks...

Natasha then started to massage the big breasts of Y/N in which she moans because of the feeling of her touch.

Y/N: (moan) Ah~! My chest~! Uh~!

Natasha: (seductive smirk) You love these big breasts of yours getting squeezed and played with Darling~?

Y/N: (moan) Feels weird~. Ah~! But at the same time, it feels- Oh~! So good~!

Natasha: (seductive smirk) Well I think you're gonna enjoy this even more~!

Natasha then placed both Y/N's breast on her mouth sucking them at the same time, leaving Y/N to have a sudden jolt of pleasure in it.

Y/N: (moan) AAAHHH~!!! OH GOD~!! AH~!

Natasha kept sucking on Y/N's breast while she was enjoying the feeling more and more the sensation of her sucking on her big breasts was really making her even more hornier than before.

Y/N: AH~! SO GOOD~!

Then Y/N's saw Natasha big breasts swinging and was entranced like always before she grabbed them and started to massage them in which Natasha moan loudly, although muffled because of her still sucking on Y/N's big breasts and could see that she was enjoying the feeling too.

Y/N: (moan) Is this how you girls feel when I grope or suck- Ah~! Your breasts~? Oh~!

Natasha simply nodded in her response and was enjoying Y/N on her groping her big breasts and continued to suck harder in response.

Y/N kept on moaning as she was rubbing her thighs and feeling wet already while gropping her friend's breasts.

Natasha could also feel herself getting wet from down below because of the amount of lust it was building up inside both her and Y/N. 

Y/N: (moan) Natasha~! AH~! I'm feeling wet~! Uh~!

Natasha: (thoughts) And I'm gonna make you even more wetter than before~.

Then Natasha's left hand was slowly running down on Y/N's Thicc thighs before reaching into her very wet pussy.

Y/N: (moan) Wait, Natasha~. Not my-

But before she could finish speaking Natasha started to rub Y/N's wet pussy In which she moan louder than she could because of the sudden sensation she just received.

Y/N: (moan) AAAAAHHHH~!!!! OH GOD~!! AHH~!!

Natasha finally stopped sucking on Y/N's big breasts, leaving a noticeable mark on it while slowly increasing the pace of her hands on Y/N's pussy, hearing Y/N moaning as she was getting herself wetter than before.

Natasha: (seductive smirk) You like that Baby? You like me rubbing my beautiful hands around your beautiful and yet gorgeous pussy of yours~?

Y/N: (moan) Oh yes~! Ah~! It feels so weird, but- Ah~! At the same time, feels so good~!

Natasha: (seductive smirk) Then you're really gonna enjoy this next part Darling~.

With Natasha's seductive smirk all over her face, she slowly stopped rubbing Y/N's pussy and started to slowly crawl down from the top of her body to the down and Thicc part until reaching the very wet pussy of Y/N and started to lick her lips.

Y/N moans loudly in pleasure while having eyes rolled up and her tongue sticking out. Y/N was grabbing Natasha's head while tightening up her grip so that she hits the right spot with her still licking and sucking her pussy like crazy leading Y/N to moan louder each second of it.

Y/N: AH~! GOD~! YES~! LICK ME~! LICK MY BRAND NEW PUSSY~! AHH~!!

Natasha replied with even more intense licking and sucking on Y/N's pussy and she also felt herself getting wetter and rubbing her thighs together because of it.

Y/N: (moan) NATASHA~!!! I'M GONNA CUM~!!!!

Natasha: (thoughts) Let me taste your female juices then~.

Y/N: (moan) Ah~! I-I'm cumming~! AAAAAAAHHHHHHH~!!!!!!

Y/N finally came inside of Natasha's mouth in which she was surprised by how much she was cumming although she pulled her closer to her to drink every drop of Y/N's juices and was definitely enjoying the taste of it.

Y/N: (panting) Ooohh~... So good~... You were right, being a girl isn't so bad after all~.

Natasha: (gulps and seductive smirk) I'm glad you like it, your cum tasted pretty sweet. Although (rubbing her thighs) I don't want to be left out on the action~.

Y/N: Then let's go.

Y/N ends up grinding her pussy against Natasha's, making the both of them moan and sending waves of pleasure through their bodies.

Natasha: Yes Darling~! (moan) Keep grinding with that amazing pussy of yours (moan) with mine~!

Y/N and Natasha kept grinding their vaginas together and moan from the pleasure. Natasha then gropes Y/N's breasts, pinching her nipples with her fingers.

Y/N: (moan) Ah~! No, not my nipples~!

Y/N moans from this action and returns the favor by doing the same to Natasha.

Natasha: (moan) Ah~~! Yes Keep doing it~! (moan) SATISFY ME DARLING~!!!

She grind her vagina at Y/N's with more force before she started moving faster and harder, causing Y/N to moan.

Y/N: (moans) So hard~!

Natasha: (moan) BUT SO FUCKING GOOD~!!

Y/N and Natasha kept on gropping and grinding each other as Natasha then gropes Y/N's big ass.

Y/N: (moan) AHH~!!! MY ASS~!!!

Natasha: (moan) God I love rubbing your THICC and JUICY ASS~!!!

Then Y/N decided to do the same thing and started to rub Natasha's big ass in which she moans loudly because of it and was grinding harder because of it.

Y/N: NATASHA~!!! I'M GONNA CUM AGAIN~!!!

Natasha: (moan) ME TOO DARLING~!! LET'S CUM TOGETHER~!!!!

Natasha and Y/N grind their pussy's for 2 more minutes before cumming together, resulting in one final moan from the two.

Y/N and Natasha: (moan) AHHHHH~!!!!!!

The two eventually fell down on the bed while panting. 

(lemon ended) 

Y/N: (panting) Wow... That.... was incredible~!...

Natasha: (panting) You said it...

Y/N: So, is this how you girls feel whenever you cum and have sex with each other?

Natasha: Yes...

Then Natasha crawled towards Y/N and gave her a passionate kiss to her in which she returns the gesture while having her arms slowly going down her waist in which was close to her and deepen their kiss.

Y/N: (broke the kiss) Hey, do you think you can teach everything in a girl does in my female form?

Natasha: (smile) Of course Darling. I will gladly help you out on that endeavor, sweet heart~.

Y/N: (smiles) Thank you-

Just then, the door was opened as they saw Team RWBY, Nora, Pyrrha, Velvet, Coco, Glynda, Kala, even Summer and Raven from outside the dorm.

Ruby: There you are Y/N! We've been l-

She stopped mid sentences when she and the others noticed Y/N was in her female form naked with Natasha as she was blushing madly.

Y/N: (blush) G-G-Girls... Mom... Aunt Raven... Glynda... T-This is not what it looks like...!

Summer: (shocked) HONEY, IS THAT YOU?!?!

Glynda: (shocked) HOW ARE YOU A GIRL?!?!

Nora: (shocked) WHY ARE YOU NAKED?!?!

Raven and Velvet: (shocked) AND WHY ARE YOU SO THICC AND HOT?!?!

Everybody looked at Raven and Velvet with shocked expressions that they didn't expect them to say that especially Velvet of all people!

Y/N was blushing more red as she covered herself with the blanket.

Y/N: Wait, clam down! Yes it is me, but I can explain!

Pyrrha: (blush) Well um....can you explain first on how did you turn a girl?

Blake: (whispering and a bit jealous) A very good looking and Thicc one too....

Y/N: Natasha made me drink a gender bend potion, (blush) and then we... Umm...

Kala: Then what?

Y/N was about to reply, but she was too embarrassment to admit it.

Natasha: (smirk) I took Y/N's first as a female, and it was so good. I really missed the dick, though.

Everybody gained a look of shock and surprised after hearing that, and surprisingly some of them gained a bit of jealousy for Natasha getting to be Y/N's first as a female while she couldn't take the entire embarrassment and covered her face fully with the blanket.

Y/N: (blush) Damn it Natasha! Why did you have to make things so difficult?!

Natasha: (smirk) What? There's nothing wrong in sharing something like that especially when (rubbing her hands on Y/N's cheeks) you enjoyed every second of it. (whispering) Me eating you up from top to bottom~.

Y/N had been blushing to the point where steam erupted from her ears and her eyes began swirling around before she faints on the bed.

Natasha: (smirk) Oh dear I think I broken her~.

Ruby: Poor Y/N...

Yang: (sighs) I guess she could take the pressure anymore.

Weiss: You sound as if you wanted to be the one to take her first time.

Yang: (smirk) I don't know what you're talking about Ice Queen~.

Weiss: Don't lie to me, Yang. I know you're planning to do whatever you want his female body.

Yang: (smirk) Maybe, maybe not. But even so you can't prove it if that's true or not Weiss.

Weiss: Of course I- Blake, what are you doing?

Blake was sneakily going inside the covers to grope Y/N's breasts without no one noticing it.... only now to be caught by Weiss red handed and having a tiny blush plastered on her face.

Blake: (blush) Um... nothing....

Weiss: Doesn't look like nothing to me.

Pyrrha: Why are you trying to grope Y/N?

Blake: (blush) What grope Y/N? No I was just...checking on her to see if she was ok that is all... Hehehe...

Glynda: (deadpanned) Really, Miss Belladonna?

Velvet: Coco?!

Then everybody saw Coco also trying to grope Y/N, only it was on the thicc ass of hers that was the target.

Coco: (blush) I... Um...

Velvet: Are you kidding me? You too?!

Coco: (blush) No! I was... uh...

Weiss: Unbelievable! First Blake, now Coco! Who's next? Raven?!

Summer: You really think Raven would try to grope my son- I mean daughter...? Boy, this is so confusing.

Summer then looked at where Raven was last time, only for her siluatte to be in her place instead.

Summer: What? Where did she go?

Y/N: (moan) Ahh~!

They look and saw Raven groping the big round breast of Y/N who was still out but moan because of of Raven's touch while everybody was shocked by how fast that woman appeared without no one noticing her being gone.

Raven: (astonished) Incredible.... They're even more softer than I ever thought!

Summer: Raven, what are you doing?!

Raven: Look, Summer, I was curious to see how soft those tits are on my neph-Niece. And my God they are incredible soft!

Summer: That still doesn't give you the right to do just that! (grabs Raven's waist) Now get your hands off Y/N!

Raven: (grabs Y/N's thighs) NEVER!!!

Summer starts pulling Raven away from Y/N who was holding onto her thighs.

Raven: (thoughts) Damn, EVEN HER THIGHS ARE BETTER THAN MINE!!

Ruby: Mom, Raven, stop fighting!

She went to stop them, but she tripped her heels and accidentally fell on top of Y/N, shocking the girls.

Y/N moan because where Ruby landed was in-between the big breasts of hers and when she looked down she realizes in what position she was in right now....not to mention she was surprised by how actually soft and round Y/N's breasts were.

WBY: RUBY!!!

Ruby: I DIDN'T MEAN TO DO THAT!!! (thoughts) Although, they feel like I was in cloud....

Glynda: Girls, I think we should get some sleep.

Kala: Yeah, Y/N is exhausted from the dancing and, you know what.

Summer, Raven, Glynda, Kala, Natasha, Coco, Velvet, Pyrrha, and Nora left the dorm, leaving Y/N and Team RWBY.

Weiss: How long till the effects wear off?

Blake: I think it said about 1 hour or so. I don't remember...

Ruby: So, what do we do now?

Yang: (shrugs) I don't know.

Blake: Let's just go to bed for now. It is getting late.

Weiss: And hopefully, Y/N will be back to being a guy the next morning.

Yang: Yeah, I'm pretty tired to so that's a good idea.

Weiss: And Ruby, how long are you planning on sitting on Y/N for?

They look and saw Ruby sitting on Y/N's lap although it looks like she was enjoying the comfiness of her thighs while also being close to Y/N almost like a make-shift pillow.

Ruby: Sorry, she's just so comfortable like a pillow.

Yang: Is it really that comfortable?

Ruby: Come and feel her girls.

Weiss: What? You can't be ser-

Before she could finish speaking both Yang and Blake went over and each to a position with Yang on one side of the big breasts while Blake having head near her ass.

Weiss: Seriously?

Yang: (smirk) Come now Weiss, you're also curious of how soft these (points at the big breasts) melons right here~?

Weiss: (blush) I...

Weiss sigh's in defeat now knowing she couldn't convince them and since they were already in that position she decided the one course of action....that being fuck it, she'll join in on the action.

Weiss: Fine. 

She went closer and rested her head right in-between Y/N's big breasts next to Ruby who was on the other end and was enjoying it on how soft it was even if she didn't want to admit it of course.

The girls then began to sleep around Y/N's female counterpart.

(The next morning)

Y/N was already back to being a guy as he woke was starting to wake up.

Y/N: (yawns, holds his head in pain) Oh man, my head... I just had a strange dream.

He felt some weight on him as notice the girls were sleeping on him which made him blush and widen his eyes.

Ruby was sleeping at the center on his thighs near his crotch, Weiss and Yang were sleeping on his chest, and Blake was sleeping with her head near his ass.

Y/N: (blush) G-G-G-Girls...?

He tried to wake them up, only that they were in a very big and deep slumber. Although what he didn't realize is that by doing that Yang and Weiss got a lot more closer to his chest and Ruby was getting a bit closer to his crotch something of which that made him blush fully red!

Y/N: (thoughts) Crap! What should I do? I can't do anything at this right...

He was panicking trying to come up with something in order to avoid the big surprise especially with Ruby near his crotch.

Y/N: (thoughts) What should I do? Ruby's near my crotch, she tries to touch it in her sleep...

And fate decided to make it worst by having Ruby now getting closer to his crotch and he could feel her breath being ever so closely to his dick and now panicking and blushing even more now.

Y/N: (shouts, blush) WAKE UUUUUUUUUUUUUPPPPPPPPPP!!!!!!!!!!

RWBY: (woken) AHHHHHHH!!!!

Y/N: (sighs in relief) Finally...

Weiss: (upset) WHY DID YOU SCREAM AT US YOU DOLT?!?! YOU ALMOST GAVE ME A HEART ATTACK!!!

Y/N: Sorry, but this is the way only to wake you up. I mean, do you even know you were being too close to my sensitive parts?

Ruby: (confused) What do you mean close.... (looks at where she is right now) to your..... (slowly growing red around her face) sensitive... (realization kicking in) parts...? 

Y/N: (blush) Yeah, Ruby, you are that close...

Ruby's face was beyond red in fact, her face was so red it looked like it was gonna blow up into steam because of it not to mention her mind was beginning to have certain lewd thoughts because of how close not only her face was to his crotch, but also her lips as well in which Yang took advantage of this vulnerable Ruby's state, having a smirk all over her face.

Yang: (smirk) Damn Ruby, I didn't know you wanted an early, meal in the morning~.

Ruby: (blush) No! Wait! It's not like that!

Y/N: Don't you act innocent, Yang. You and Weiss are also close to try and suck my nipples.

Yang and Weiss blush harder because of the realization brought in although of them blushing out of embarrassment because of the fact on what she was doing. Although, the other didn't mind and had a seductive smile on her face.

Y/N: (blush) And Blake, you're also close to my butt.

The girls looked and saw Blake blushing profusely because she really was close to his ass and was processing on what's happening right now.

Blake: (blush) I... I didn't' mean too.

RWY: (deadpanned expressions) Uh-huh!

Y/N: Anyway, can you all get off me? We're gonna be late for class soon.

Yang: (pouts) Ohhh, Come on. Can't we stay like this for maybe 5 more minutes? (seductive smirk) Maybe not go and do something else~.

Y/N: (blush) Yang!

Yang: (giggles) Kidding or maybe (get's closer to him) not~.

Y/N's face was getting red once again and was feeling like he was gonna pass out again because of the flirting Yang was giving him.

Weiss: (upset) STOP IT YANG HIS GONNA PASS OUT AGAIN!!

Y/N: (blush) I... I don't...

Yang: (seductive smirk) What's that you're saying? (puts her breasts on his chest and gets closer to his face) Don't mind at all~?

Y/N: I'm... I'm going now! (dashes and exits the door with his clothes on)

Yang: (pouts) Aw, he ran off!

Weiss: (angry) Maybe it's because you were making him uncomfortable with all the flirting!!

Ruby: (astonished) How did... he put his clothes back on so quickly?

Blake: That's what I want to know too.

Weiss: (sighs in frustration) Let's just go to class so that we don't be late.

Chapter 10 ended. 

That was long one, had to make it into three separate parts. Anyway, the next one will be the three Milf lemon scene with Summer, Raven, and Glynda. 

Let me know what you guys think and no negative comments about this or else... YOUR'E FIRED!!! 

Peace out.