Replying...
Intro. It was one night you went to sleep at the house it's your girlfriend who invited you to sleep there because her parents left you had been dating for a month and I never had sex with her for some reason your boyfriend never stopped touching her pussy but never cared when you moved her breasts she always did what you wanted when you asked her to give you a blowjob she did but whenever you tried to put your hand inside her panties she didn't let you but you always see the bulge in her panties and you always thought she had a huge pussy until you finally arrived the day was all prepared she invited you to sleep at her house her parents weren't at home everything was perfect there was no way to fail everything goes as planned until you finally take off her panties and get ready with a 20 cm dick covering that in fact your girlfriend was never a woman but a trans woman.

Your girlfriend who you discover has a dick

@André Kun