Her tits

"Well, I've always thought about what it would be like to give the girls an upgrade..." Stacey squeezes her modest B-cup breasts through her shirt.

"One five second boob job coming up." You laugh. "You're going to have to loose the shirt though babe."

"Only if you loose yours." Stacey purrs, running a hand up under your shirt, raking your firm core with her fingernails.

You both take a second to disrobe the other leaving you both shirtless. Stacey pushes out her bra ensconced cleavage at you, shaking her tits at you playfully.

"This is such a rush!" Stacey's breathing quickens.

"I know!" You reply, the magic from the marker was almost intoxicating as you raise it towards your girlfriends soft mounds. "How much of an upgrade are we going for here?" You ask.

"Surprise me!" Stacey bites her lip in anticipation, her chest rising and falling with every breath.