Blinded by the thin partition, Vanity Red feels her way, her hands exploring the anonymous cock that pulsates with life. She strokes it, her grip uncertain, feeling the veins throb against her palm. She can hear the man's muffled moans, his pleasure fueling her own. She takes him into her mouth, her cheeks hollowing as she sucks, her tongue swirling around the head, tasting the pre-cum that leaks out. She's a quick learner, her technique improving with each thrust, her enthusiasm growing as she takes him deeper, eager to please her unseen partner.