Stepsister Shows Her Tanlines

Your stepsister rolls in from the beach, skin toasted golden. She strips off her top to flash those perfect tanlines and perky tits right at you. You crack a joke about wanting the full show and she grins, drops the bottoms too. Naked now. Her eyes drop straight to your cock pushing hard against your shorts. Game flips. She tugs them down, grabs your shaft with both hands, strokes it slow then squeezes the head like she owns it. Your hand finds her ass. She pushes closer, tits brushing your chest while she keeps pumping you. She slides one hand under to cup your balls, thumb rubbing the spot that makes your legs twitch. You spin her around, slap her ass cheek, spreading her wide so you can see the pale lines cutting across her hips. She bends a little, arches her back, still working your cock with those firm strokes. Precum leaks over her fingers and she laughs, smears it down the shaft like lube. You slide a hand between her thighs, two fingers dragging along her slit, testing how wet she already is. She looks over her shoulder, says “don’t stop” while she grinds back on your hand. Your cock throbs in her grip. She speeds up, grip tighter, other hand sliding under to play with your balls again. Both of you breathing heavy, bodies pressed close, her nipples stiff against your skin while your fingers work deeper between her legs. The tanline game just keeps going.