Ask her to turn into another man

"I don't know if you don't about this um... could you... er... turn into another guy?" you asks awkwardly.

"Of course, I do, man." your shapeshifting girlfriend or rather boyfriend quickly excited answers.

"Really? Y...you really mean it?" you ask again just to make sure.

"Yes, I really mean it, man." your girlfriend/boyfriend replies back." And y'know, I've always wondered about how does it feel to be a man. And when that you saying it, that's really keep me excited."

"Oh I see, but when you're a different man now. Would you still want to date me?" you ask unsure.

"Of course I do, man. Even if I'm a guy, I still wanna hangout with you, we could play game, watch some porn, have sex, and do some bro stuff." your girlfriend/boyfriend says as s/he acts like some bff who like to hangout with you.

"Heehee, I glad to you answer, babe." you reply as you kiss her/him again. "Anyway, why don't you change your appearance, I'm sit here and watch."

"Sure thing, man." your 'boyfriend' replies as s/he gets up and stand back to morph himself. With that, you can his body is about to change, you start to wonder who will s/HE going to be?