Blonde Rubs Prostate and Sucks Balls Before Cumshot

Cumshot erupts from the tip as the blonde woman fingers his ass deep on the green couch, her hand slick with spit while she massages his prostate relentlessly. She leans in close with her ponytail swinging, lips brushing the swollen balls before sucking them into her mouth greedily. Nails dig into his thigh as she strokes the shaft hard, building pressure stroke by stroke until ropes of cum spill over her knuckles. Bent forward in her blue top, she switches to rubbing the sensitive head, prolonging every twitch from his body. What makes her ass play so effective on a full sack like his?