As her sister's husband departs for his journey, the vixen sees her chance. She slips into the marital bed, running her hands over the sheets, inhaling her sister's scent, and feeling a thrill of the taboo. She teases her body, her fingers exploring her slick folds, her nipples hardening. She imagines her sister's husband, his hands, his mouth, his cock. She rides her fingers, fucking herself, her moans echoing in the empty room. She pictures him cumming inside her, marking her, and with a gasp, she finds her release, her body convulsing with forbidden pleasure.