A/n: This one-shot was requested by kero234, so I hope you like it, as I did the best I could!

Plot:

Y/n is a young male student in U.A's Class 1-A Hero Course (He's replacing Mineta). He has a huge crossdressing hobby, and whenever he's not in school, he's out buying cute outfits, and doing all sorts of girly things that he likes.

However, Mina tries to find out what Y/n does for a hobby, and finds Y/n in a lingerie store, shocking the young crossdresser. Mina, now knowing the truth, and being a futanari, she has a big plan for Y/n.

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No one's POV

We see Mina Ashido sneakily following Y/n through the streets of Musutafu, trying to figure out what he's hiding.

Mina: There's no way that Y/n can just be this perfect boy! All of them have their own little quirks that make them different!

As Mina turns around, worried that she might look suspicious, Y/n is gone from her sight.

Mina: Wh-Where did he go?!

After asking around, figuring out where Y/n went, she now finds herself in front of a lingerie store.

Mina: Why would Y/n come here...? Does his mom need stuff...?

Mina then enters inside the store, trying to find Y/n, when she's shocked to see him coming out of a dressing room wearing a very cute maid outfit, holding a set of lingerie.

Y/n: Oh man, this is perfect! This outfit goes perfect with the-

Mina: Y/n...?!

Y/n then turns to see Mina, and is shocked to see her.

Y/n: M-Mina...?!

Mina: Wait, why are you-

Before Mina can even respond, Y/n quickly grabs her and drags her into the changing room

Y/n: What are you doing here?!

Mina: Finding out what you do on your days off! But... I wasn't expecting-

Y/n: Shut up! Look, you can't tell anyone about this! If the guys find out about this, they won't let me live it down!

Mina, looking at how Y/n is, starts to get erect, creating a bulge in her skirt.

Mina: You know, there is one way I can keep this a secret for you~

Y/n: *gasps* You'll do it?!

Mina: Yep, but first~

Mina then pushes Y/n down onto his knees, and she takes off her skirt, revealing her 10 inch futanari cock.

Mina: You have to be my little slave~ Deal?

Y/n: *gulps* So I...? Have to do this...?

Mina: Your only choice~

Y/n: Fine...

Y/n then gets down on his knees and starts sucking on Mina's cock.

Mina: *moans* Oh man Y/n, is this your first time taking girl cock~? Because you're amazing at it~!

Y/n: *muffled* N-No... I've... sucked off a few dildos...

Mina: Then you really are good at this~

This makes Y/n blush a bit, as he starts to go deeper in, and after a few seconds, a knock is heard on the door, coming from a staff member that knows Y/n well.

Staff Member: Hey Y/n, is everything alright in there?

Mina then stops, as Y/n simply pulls out her cock and speaks up.

Y/n: I'm fine...! One of the bras was a bit too tight!

Staff Member: Sorry about that! Want me to get you another one?

Y/n: I'm fine!

As the staff member leaves, Mina smiles at what just happened.

Mina: Good job~ Now, let's do something that'll be very interesting~

Mina then turns Y/n around, and pulls up his dress, showing that he's wearing panties.

Mina: You're wearing panties as well?! Are you sure you're not a girl~?

Y/n: Wh-What?! Of course I'm not a girl...!

Mina then smirks and starts giving Y/n's ass a rimjob.

Mina: Well this ass of yours begs to differ~

As Y/n starts moaning from the pleasure of being licked, Mina then whips her cock out and shoves it right into Y/n's asshole, causing him to cover his mouth to avoid everyone hearing the slutty moans.

Y/n: Fuck~!

Mina: This ass is so tight~!

Mina then begins to thrust harder and faster into Y/n's ass, even pulling on his hair, making him moan out in pleasure even more.

Mina: Dammit...! I'm gonna cum soon~!

Y/n: Do it~! Cum inside my ass Mistress Mina~!

Mina: Mistress~? Now that's a name I could get behind~ Now get ready because here I "cum"~!

With one final thrust into Y/n's ass, she cums inside him, making him moan out in pleasure. She then pulls out, leaving Y/n slumped on the ground with his ass full of cum.

Mina: So Y/n, I was thinking that maybe after this year is over, you drop out of school~

Y/n: Wh-What?!

Mina: It's that or secret exposed.

Y/n: *sighs* Okay...

*Time-skip to the summer*

It's now summer break, and we see Mina out on the shore on a private beach she found.

Mina: Now this is relaxing~! Don't you think Y/n~?

Y/n then comes up from behind her, wearing his own outfit that she had bought him.

Y/n: Yeah, it is nice.

Mina: Now... I think it's time we tried doing a little something new today~

Y/n: *gulps* Of course Mistress

One-Shot End!

I hope you liked it, because I did the best I could with such a time-limit on my horny levels.