Don't want to leave your girlfriend out

"Why don't you lie down next to her," you casually say to Ava. She gives a knowing chuckle and carefully lies down on the bed, hips aligned with Monica's, pussy situated perfectly for your still-hard cock.

"Ooh, what are you gonna do to me?" she asks, playfully.

Monica gives her a quizzical look. "Uh, seems pretty obvious to me. Is this some sort of role-play thing?"

"Don't worry about it," Ava says back, winking. "He gets it."

Indeed you do. Even as Ava gasps as your cock slips easily into her waiting folds, you're contemplating the question you know is going to come up.

Ava's already pretty close to your dream girl, if you're being honest. You wouldn't want to change a thing about her personality, and as she rightfully deduced when you first brought up Monica, her body's pretty close to your ideal as well. Sure, Monica's tits are great, but you're not sure you want every woman you sleep with to have a pair of boulders on their chest.

As you continue to piston away, Ava groans and pants underneath you.

Then again, you're not sure how much more you want to change, either. You're already very different than when this process started, and while you're not unhappy in the least about being a muscle-y sex god with a dick big enough to give porn stars a run for their money and enough stamina to put it to good use, submitting yourself to further changes is starting to feel like something of a risk...

You feel your orgasm approaching, and decide that it's too late for second thoughts. As you crest into a climax inside your girlfriend, you feel reality fading away again, and are confronted by the words: