you're on vacation with your Wife, visiting friends, and last night at dinner, your friends were talking about how your Wife is the one who wears the pants in your relationship... an observation with which both you and your Wife agreed...
Now, you're back in your hotel room, and your Wife starts talking about how the more She thinks about it, the more She thinks that it's kind of unfair that while She obviously does wear the pants, you're the one who's more sexually satisfied. She starts laughing to Herself, and says that She wishes that She was the one with a cock, so She could fuck you and actually feel something pleasurable.
As She's expressing this fantasy, your Wife starts to feel something strange happening in Her pants... and then, something unbelievable happens: a cock breaks through your Wife's underwear!
your Wife is delighted by this magical penile growth. Finally, a real cock in the relationship! Though you initially try to hide it, She can see that you, too, are excited, and laughs at you, saying She knew all along you were a faggot... or, maybe, just as She wished for a cock, you wish to be fucked like a girl!
She runs over to the dresser, pulls out a bra, panties, and a school-girl skirt and instructs you to put them on. Of course, you obey, as it's already been established that She wears the pants...
Once you're all dressed up, your Wife summons you over to the bed to beginning testing your skills as the woman in the relationship...