Stepsister's New Workout Routine

Kaia wants you hitting weights with her so you'll both look like something you'd fuck raw. Admit it—get some abs and she'll probably bend the rules with you, maybe beg for it. So she sweetens the deal. Do a few crunches, she strips down. Easy math. Ten minutes later she's bare, every inch showing, perky tits bouncing while you drop pants too because, hell, why not? Pretty soon the living room smells like sweat and skin. No more room for clothes. You're both slick, and that cock of yours? Fucker gets more reps than you ever planned. Her hand grips you like a handle—squeeze, stroke, slide between those legs, up inside, tighter, wetter—until your core shakes harder from grinding her open than it ever did off the floor. She moans on every rep like that's the routine now: flex, fuck, grind till both of you break, then keep working.