A taboo thrill courses through her veins as she kneels before the wall, her heart pounding in anticipation. A massive, uncut black cock appears, the sight and scent sending a jolt of lust through her. She licks her lips, her tongue tracing the rim of her mouth before she leans in, taking the head in, savoring the salty pre-cum. She sucks, slow and steady, her hand working the shaft, her other hand cupping his heavy balls, feeling them tighten as she brings him closer to release.