"Just a friendly massage, right?" the brother-in-law smirks, his hands roaming over his stepmom's younger sister's body. She's tense, but not from the massage - it's the taboo thrill of having her stepbrother-in-law's hands all over her. He leans in, whispering in her ear, "I've always wanted to fuck you, you know." She bites her lip, trying to suppress a moan as his hands slip between her legs, his fingers brushing against her clit. She spreads her legs wider, giving him access, her body betraying her mind's protests. He grins, his cock already hard and ready, and she can't help but reach out, wrapping her hand around it, feeling its thickness, knowing what's to come.