"Fuck me, my sister," she pleads, her voice barely a whisper, but the words reverberate like thunder in the confines of their shared room. Her brother, eyes wild with lust, obliges, pushing into her wetness with a fierce urgency. Their bodies slap together, the sister's nails digging into her brother's back as she pulls him deeper. They fuck silently, their pleasure building, until they're both teetering on the edge, their secret passion threatening to consume them.