Parents asleep down the hall, horny redhead step sis slips into my shared bed wearing just an oversized t-shirt, no panties. She crawls under the covers, straddles me silent and sinks her soaked pussy raw onto my hard cock with one slow drop. Bed creaks softly as she rides careful but deep, freckled tits bouncing under the fabric while she bites her lip to stay quiet. She grinds faster, whispering “cum on my pussy, not inside.” She cums shaking first, pussy pulsing tight. I pull out, stroke once and unload thick ropes across her shaved pussy and stomach, cum dripping down her thighs onto the sheets while she kisses me laughing “best shared bed ever.”