Caught mid-orgasm with her thighs shaking, stepsister’s panties already dripping down her ass. Two fingers buried deep while she bites her lip like someone might walk in. Then—her hand freezes. A knock at the door? No… just another second of pleasure before she collapses back onto the bed, cum smeared on her thighs and a look that says ‘I knew you were watching.’ Lace still clinging to damp skin as she wipes herself off with a towel.