> not trans and have a gf
> one day we are fucking around and she is trying on my boxers, can barely get them on becuase she has a big ass and I'm skinny af
> she says I need to try on her thongs
> jokingly put them on
> fit like a glove
> she gives me plenty of compliments of how cute and how it actually makes my dick look nice
> I get hard from this
> the tension from the boner pulls it tighter up my ass
> even harder now
> leaking a little into thong
> she laughs and says aww so cute
> she jokingly starts to give me a little handjob over the thong
> I cum in probably 4 seconds
> she is laughing hystarically
> I'm shy and blushing
> still hard
> she takes my cock out of thong
> cum has made a mess everywhere
> gives it two strokes as she laughs
> I start to cum again
> this time it's just basically flowing out almost like a really short and slow pee
> she is laughing with tears in her eyes she thinks it's so funny
> she calls me her little twink now
> won't stop making fun of me for it
> I keep getting hard and we've done it again a few times and every time I cum in seconds multiple times
I didn't know I was like this but i think I get it now