It was a peaceful day at Planeptune and coming out of elevator was RED as she leap out of the elevator with a cheerful but cute smile on her face as she step onto the living room and then called out.

RED: (smile) Darling~! I'm here~! And I got something for you~!

Seconds gone by and everything we silence as she wonder where everyone else could be at as she look around, trying to find anyone especially her darling Y/n.

Soon she open Y/n's room and find him sleeping peaceful in his bed as he move to the left and facing the ceiling as RED approaches I'm and watching him sleep made her smile.

RED: (thought) Look at my darling Y/n sleeping so peaceful after his long and epic adventure. He's soo cute.

She continues watching him sleep and then she look around to see if anyone is watching her but since the ghost is clear she pulled out what seems like a new potion she brought as she open the potion and then pour some into Y/n's mouth.

RED: (thought) Okay then potion. Let's see what you can do.

She waited for the effects to start and after a minute or so it started to happen as there was a flash of light appear below the cracks of the door and then it disappeared.

This made Y/n wake up as his eyes open and was face to face with RED who is sitting on top of him with a cute smile on her face.

RED: (smile) Good morning my darling~.

Y/n: Oh morning there RED. Guess Histoire must have let you in- hold on, why is my voice sound weird?

RED: (giggle) How about you look at your bathroom mirror.

Y/n: Um why?

RED: (smile) You'll see.

This weirded him out so after RED gets off of him, he make his way to the bathroom and once there he turns on the bathroom light and take a glance at his mirror before he wash his face for a bit until he froze.

Y/n: Wait a minute.

He slowly looks up at the mirror and sees his or her reflection as he's somehow turned into a girl.

Y/n: (Shocked) EEEEEEEHHHHHHHH?! WHAT IS THIS!? THIS MUST BE A JOKE RIGHT?! Maybe it's the mirror messing with me.

She touch the mirror only to find her hands and arms look female like as she suspected her body and was even more shocked to find out that she is turned into the girl.

Y/n: (shocked) HOW DID THIS HAPPEN?!

RED: (smile) It's all because of this!

She turn to see RED holding a potion as she shows it to Y/n as she explained.

RED: (smile) I brought this potion yesterday and it said to turn male to female with a drink.

Y/n: Really? Wow that's kinda cool. (Shocked) Wait, what the hell I'm i saying?! You've turned me into a girl. Why?!

RED: (smile) Obviously I wanna see how cute you are if you were a female and now I got my chance and you are adorable as a female by away.

Y/n: You turn me into a girl just to see how cute I am as one?

RED: (smile) Yep!

She sighs and turn back to the mirror and look at herself for a bit and then smiles a bit and says.

Y/n: (smile) Alright I do look adorable as a girl. Still I'm I stuck like this forever?

RED: (smile) Don't worry about that. You'll turn back to normal tomorrow.

Y/n: Well that's good. Hold on? Does this effect my CPU form?

RED: Huh, never thought about that. But let's see it!

Y/n: Sure but first....I need some clothes and I don't think I have female clothes inside my closet.

RED: (smile) That's okay. I brought these clothes in case it happens.

Y/n: (sigh of relief) Thank you.

(Sometime later)

We see the two at the balcony of Nep tower as Y/n is gonna try to transform while as a female and wonders what her CPU form looks like as female.

Y/n: Okay then.....here goes nothing.

She then transforms as RED watches as Y/n transforms into her CPU form but rather be in armor, she looked like Neptune and the other female CPU forms.

RED: (smile) Whoa! You look super cute in your CPU form!

Red Heart: Yeah but I feel kinda.....naked in my CPU form. Guess I know how it feels to be nearly naked.

RED: (smile) Still you look very cute~!

Neptune: (smile) Hi RED!

Red Heart stunned when Neptune and Nepgear enter the balcony to see RED but they were surprised to see a female goddess here as she float down as the two stare at her.

Neptune: Um who are you?

Red Heart: Oh...um you see.

RED: (smile) I've turned Y/n into a girl!

They stood there for a minute and then they yell in shock as Y/n return back to her human form while Neptune looks around her body.

Neptune: (surprised) Wow! You are Y/n! That's crazy.

Nepgear: How did you managed to swap Y/n's gender?

RED: (smile) I use a potion to change his gender but don't worry, it said he will return back to normal next day.

Y/n: (little blushed) Yeah it's a bit weird isn't it?

Neptune: (smile) Still I find you cute no matter what gender you her.

Then she kisses Y/n on the lips which she smiled while Nepgear ask RED.

Nepgear: You sure he or she be fine?

RED: (smile) Don't worry. Y/n will be fine I'm sure of it.

Y/n: Well in that case I feel like going home. Thanks for letting me crash here Neptune.

Neptune: (smile) Hey we were all tired after that Alola adventure last night.

RED: Alola adventure?

Nepgear: (smile) Probably not ask me, i don't know about it as well.

RED: Well anyways let me take you home and relax at your place.

Y/n: Sure, I don't mind you hanging out with me for a bit.

RED smiles in joy as the two head off to Y/n's place as Histoire walk pass them which cost her to stop and turn to see another girl with RED as she wonders who that girl is but shrugged and flies off.

(Later)

We see the two in Y/n's car ans driving through the streets of Planeptune as Y/n is still getting use of beinga female until the next day while RED sat at the passenger seat as she turns to Y/n and then said.

RED: (smirk) You know, not only your cute but hot.

Y/n: (little smile) Thanks. Not the first time being called that.

RED: Yeah but no matter what you are male or female, you are still my darling Y/n.

She then gets close, so much so she can feel RED'S breast touching her arm as RED let's out a small giggle while Y/n blushes a bit as RED gently touches her legs.

RED: (smile) My your legs are smooth. I may lay on them for a bit.

Before Y/n could say anything, RED lay on her lab and made a small cat like purr which made Y/n blush even more. Then she stop at a traffic light and waits for the light to go green.

Then four guys drive up beside them and looks over at Y/n and smirked as one guy said.

Male person 1: (smirk) Hey there hot stuff, where are you going?

Y/n: Me? Well home, why?

Male person 2: (smirk) Say your cute. Wanna hang out with us?

Male person 3: (smirk) We have a party at our place if you wish to join us?

Male person 4: (smirk) We can have a great time.

Y/n: (thought) Damn I feel bad for every girl that gets hit on by these type of guys. I know how that feels.

Y/n: Yeah sorry but I wanna get home and relax. Don't ever talk to me again.

Male person 1: (smirk) Oh well. Here's my phone number if you ever change your mind.

He passes her his phone number and once the traffic light tyrne green they drive off. Y/n looks at the phone number while RED sat up and ask.

RED: Is that their phone number?

Y/n: Yeah but I'm ain't gonna call them.

She tosses it away and then drives off as minutes gone by and they return back home. Y/n unlocks the door and the two walk inside as RED looks around in amazement.

RED: (smile) You live a nice place.

Y/n: Thanks. So this wears off the next day?

RED: (smile) Yep! So what do you wanna do to pass the time?

Y/n: Well let's see........wanna watch a movie?

RED: (smile) Of course!

Y/n: (smile) Great! I'll make the popcorn.

RED: And I'll pick out a film!

(Hours later)

It was the afternoon and we see Y/n and RED relaxing st the couch, sharing the popcorn while Y/n is still female as they watch a nice film while RED cuddles Y/n while she said.

RED: (smile) This is nice.

Y/n: (smile) Yeah. Feels good to just kick back and relax.

RED: (smile) Yeah and now all the villains are in prison, things would be peaceful.

Y/n: Yeah let's keep it that way.

RED: (smile) Sure thing.

They continue watching the film until the movie ends as RED looks over to Y/n and then smirked as she lend over to Y/n and then ask.

RED: (smile) So...what else we should do?

Y/n: I don't know. I mean what di you think we should do?

RED: (smirk) I think I know.

She then gets onto Y/n lap while knocking the popcorn out of the way and then kiss Y/n on the lips. She continues to kiss the female version of Y/n which surprised her a bit but then she kiss her back and the two make out a bit and then Y/n let out a cute moan which made them stop kissing and then look at each other and then let out a small laugh.

RED: (Giggle) Well that was a cute moan there.

Y/n: (Giggle) Yeah. It actually feels a bit embarrassing.

RED: (smile) No need to feel embarrassing darling. I love you no matter what you are.

Y/n smiled and then RED pulled Y/n onto the bed as she realised they are gonna do it so she ask.

Y/n: (little blush) Are we really gonna do this?

RED: (smirk) Of course darling. I wanna hear more cute moans while we still have a few hours left. Now....shall we begin?

(Lemon start)

RED pulled down Y/n's trousers and underwear to which Y/n was shocked that he has now a vagina rather then a dick but still RED goes down to it and starts licking her tongue into it, making Y/n gasp a few times while holding on to a pillow of his couch as RED continues licking her vagina.

Y/n: (moaning) Holy crap this feels weird but some how feels so good.

She then let out a cute moan while RED continues on, getting her tongue deeper and deeper until Y/n can't handle it anymore and then let it out as she let out a cute yell of pleasure.

She was breathing heavily after that and then RED gets up to her face and the two start to make out as Y/n grabs on one of her breast as the two make out and letting out some moans.

Sometime later we see RED sitting on the couch while Y/n on his knees and licking her vagina after she took her underwear off and goes on licking her vagina as RED let's out cute moans as Y/n continues on going.

RED: (moaning) Oh darling this feels amazing! Oh darling~!!!

She let it all out and after that Y/n kissed her on the lips once more while sticking her fingers into her vagina as the two make out. Then Y/n lay on top of RED, licking on her breast while RED is letting out some moans of pleasure as Y/n kept on licking and then sucking on her breast which made her let out a cute moan even more as Y/n continues sucking on RED's breast for a while as RED gets really turned on and then can't handle it and let out a loud moan.

She lay onto the couch while Y/n crawled up to her as she touch RED cheeks as she smirked and then the two kissed just as midnight hit and there was a flash and Y/n return back to male as he sat up and look at himself.

Y/n: (surprised) Wow! I'm male!

RED: (smirk) Aaawww and things are about to get even more fun. But at least I was right in the end.

Y/n: (smirk) Yep and now it time for your punishment.

RED: (smirk) Oh darling~

He then pinned her onto the couch and the two make out for sometime and after a while he insert his now returned dick into RED vagina and start thrusting in and out while thid made RED moan even more as he keep going for a minute in a half as the two let out some pleasure like moans  as Y/n goes a bit faster until the two can feel it and seconds later they let out a loud moan as they let it all out and once that the two pass out onto the couch and sleep.

(Lemon ends)
(Next day)

We see Y/n who has returned back to male waking up and fire himself sleeping on top on RED and laying on her breast while she sleeps. He sat up and look at his body and then walked over to a mirror to look at himself and see he is indeed back of being male.

Y/n: Well.....at least being a female for a day was kinda fun....I guess.

He then heard RED cute yawn as she sat up and look over to see Y/n male again as she smiled and said.

RED: (smile) Good to be back as male?

Y/n: (smile) Yeah but at least it was fun.

RED: (giggle) It sure was. Still like I said, your still cute no matter what you are.

Y/n: (smile) Right. So, want some breakfast?

RED: (smirk) Sure thing darling.

And so they have some breakfast together and enjoy the rest of the day together without Y/n being turned into anything ever again.

To be continued.........................................