"Well, let's do the role-playing game with your shapeshifting power." you answer your shapeshifting girlfriend.
"A role-playing game with my shapeshifting power. Now that's interesting, hun. I should do that earlier, I just love role-playing game with my beloved boyfriend." your girlfriend smiles and she seems so excited to hear you it. "So, honey, now that you're the one who wanted to play the game, do you want us to start?"
"Of course, I do." you answered. "But what should we gotta do next?"
"Well, I was thinking about some kinkies, fantasy, and some weird stuffs I have it in mine." your shapeshifting girlfriend thought.
"No kidding, you're not the only one who saying this, and besides I don't mind if you turn into anyone you want yourself to be." you replied.
"Teeheehee, oh you're such a silly naughty boyfriend." Your girlfriend teases you. "But y'know, what if I become somebody that you don't wanted, I just wanna satisfy and please my boyfriend."
"And I don't wanna disappoint my girlfriend either, I just want us to enjoying each other for the role-playing game, that's all." you replied back. "Then again, you did turns into a lot of people when we have sex and I feel fine with it, babe."
"Well, I guess you're right about that, hun. And who do you want me to turn into?" your girlfriend asked.
"I really don't know, babe. What about you?" you ask her back.
"Hmm... let's see, oh I know who I gotta be." your girlfriend smiles as she figures it out.