With Loona finally cured from her syphilis, she was now seen at her mirror and looked at herself as she looked good as new. Like she was just reborn. Y/N was sitting on the bed as he watched her.

Y/N: Still can't believe you're cured?

Loona: Yes. It's unbelievable. ... N/N... Seriously, I... I don't know how to thank you. This... means a lot to me.

Y/N: You don't have to thank me. *stands up* I just want you to be free. *walks to Loona* Free from everything that's holding you back. Your syphilis was just the start. Next up, whatever comes next, I guess.

Loona: Thanks.

He planted his hands on Loona's shoulders and kissed her cheek before walking away. However, as Loona was thinking about something, she was starting to sweat a bit.

Loona: Um, N/N? Is it me or is it getting hot in here?

Y/N: Huh? Um... I don't... feel anything. Why? What's wrong?

Loona: It's nothing, really, but... I feel hot.

Y/N: Hot? Like a fever?

Loona: N-No, no, no. Not that kind of hot.

She then started panting. She felt her pants getting wet and looked down and realized something.

Loona: Oh, no. No, no, no! Not now!

She got up and ran to the closet and closed the doors behind her.

Y/N: Loonie? Honey? A-Are you alright?

Loona was panting as she kept sweating. She looked at her waist and watched as her pants were getting wet.

Loona: *thinking* Damnit! I can't be in heat! Not now! Not with Y/N in the room!

(⚠️WARNING⚠️: Slight Lemon Ahead!
Read At Own Risk)

She then started whining as she covered her crotch and lowered to the ground.

Y/N: Loona? What's going on?

Loona: Um... Y-Yeah, I'm fine, but...

Y/N: But, what? Loonie, what's wrong?

Loona: Uh, n-nothing! I-I just... need to get something... fixed in here!

She then started taking her pants off and stuck her fingers into her panties and moaned.

Y/N: Loona? W-What are you doing in there? A-Are you moaning?

Loona: What? N-No, I'm not! Listen, can you, uh... leave me alone for a bit? I need some privacy!

Y/N: Privacy? O-Oh. Okay. *walks away*

Loona: Phew. *thinking* Damnit, Loona, girl! You couldn't wait till he was out of the room before you started to get in heat? Hah... Hah... Hah... Come on. Come on! Hurry up!

As she kept masturbating in the closet, she tried to hold her moans in, but Y/N was able to hear her. He was beginning to feel worried, but his nose caught a familiar scent.

Y/N: *sniffs* What the...? I smelled that before... But, where? ... Wait, back at I.M.P., the office smelled like body odor. And... It had Loona's scent on her. And now, it's getting stronger and stronger. What is she... doing? Loona?

Loona: *thinking* Crap, crap, crap! Come on!

Y/N: Loonie, what is that smell? And why is it coming from you?

Loona: *gasps* *thinking* Oh no! His nose! *normal* Um... D-Don't come in, N/N! I-I'm... *moans*

Y/N: Loona? Are you even decent?

Loona: NO! No! No, I'm not! Don't come in! *moans* L-Look, just leave me alone, okay?

Y/N: Loona, I know that scent. I smelled it at I.M.P. and it was your body odor. What are you doing in there that's making you sweat so much?

Loona: Um... I...

Y/N: ...

He began to smell the closet and his environment changed to black with red outlines. He was able to see Loona doing something, but he couldn't tell what it was and gasped.

Y/N: Loonie? What the hell are you...? Loona!

He opened the door and gasped as he couldn't believe what he was seeing. Loona noticed and was horrified to know that Y/N saw her masturbating. After a while of staring at each other, Y/N shook his head and closed the doors.

Loona: N/N? N/N?!

She opened the door and realized that Y/N wasn't anywhere to be seen. She got worried, but she heard water running in the bathroom and put her pants back on and went to the bathroom.

(Back To Normal)

Loona: N/N? Are you alright in there?

Inside, Y/N was washing his face l, trying to help him clean out what he saw of Loona masturbating in the closet.

Y/N: Holy shit! I-I cannot believe what I just saw! What the hell's wrong with you, N/N?! What were you thinking?! *hears door knocking* Huh?

Loona: N/N, are you in there?

Y/N: Loona?!

Loona: Look, I know that what you saw was bad and... Look, I-I can explain!

Y/N: Explain what?! You were in the closet with your pants down and you were... I'm sorry, Loona! I didn't mean to do that!

Loona: N/N, wait! Please, let me explain! It's not what it looked like!

Y/N: Oh, it's not?! I am over the sink, trying to wash out what the fuck I just saw!

Loona: I'm sorry, N/N! I-I didn't mean for you to see me like this!

Y/N: Like this? What's like this?

Loona: N/N, I'm in heat! Okay?! Look, I'll come clean, but please, just don't... Don't leave me.

Y/N gasped when he heard Loona say that.

Y/N: Are... Are you decent?

Loona: Would I be here if I wasn't?

Y/N: *opens door* Loona?

Loona: ...

Y/N: Loona, what do you mean by in heat? Why?

Loona: Look, I'll tell you everything, but please, don't hate me for what I'm about to say!

Y/N: ...

Loona: ... What you saw in the closet... I... I was masturbating because I was in heat! Okay? And that smell you found in I.M.P.? That was me. I was also masturbating in the office.

Y/N: What? That explains the moaning.

Loona: I'm in heat, N/N! Just like how I was in the office! I've been like this ever since this morning. After I just got done having a dream of us... *blushes* f-fucking each other.

Y/N: What?! Loonie!

Loona: Look, I know that what I did was wrong and I tried to resist, but I couldn't! I was thirsty and I had to satisfy myself.

Y/N: Loonie, why would you do that?

Loona: Because of you, N/N! I was in heat because of you!

Y/N: ... M-Me?

Loona: I-I couldn't stop thinking about you and your body! And... y-your dick. N/N, please, I kept this hidden because I didn't want you to think I was a pitiful loser! I never wanted you to find out about my situation because I was afraid that you would think I'm pathetic, so I kept this hidden. But, now you caught me. In my moment. Look, if you want to be mad at me, go ahead! *starts crying* I deserve it. I'm such a dirty brat!

Y/N was still traumatized by seeing Loona masturbating in the closet, but he was listening to what Loona was saying.

Loona: *wipes tears away* We had a good thing going... And I had to ruin it! Just like always! *sniffles* Go ahead, N/N. Say it.

Y/N: ... S-Say what?

Loona: *crying* SAY THAT THIS RELATIONSHIP IS OVER!!! I-I DON'T FUCKING KNOW!!! SAY SOMETHING!!! Please... Stop being silent and say something. Is our relationship over because of my... problem?

Y/N was panting heavily as he was trying to come to terms on what he just saw. He's known Loona for a long time, but he was not counting on Loona to love him so badly she wants to mate with him.

Y/N: ... L-Loona... W-What am I supposed to say? I-I've... I didn't know you wanted to be with me that badly.

Loona: Of course I do! I mean, what did you expect? This is Hell! Surely, you should be expecting a lot of things!

Y/N: Loona, I may have seen you... naked before and it was just your chest, but that's not the point! My point is... I'm not... I'm not ready to move on to the next stage! I-I need time!

Loona: I don't have time, N/N! Okay? This is going to keep happening until we mate! N/N... *sniffles* Please, try to understand. I don't have time.

Y/N: But, I'm not ready! Okay? This is a whole new step for me! I... Loona, I didn't mean to walk in there and see you do... your thing. I... I-I need a moment.

He walked away and sat down on the couch. Loona sighed and walked into her room with guilt and closed the door. Y/N couldn't help but feel bad about what went down.