Chap, secured and at Mistress' mercy, finds himself face-to-face with her throbbing cock. She, clad in leather, commands him to "Suck, slave!" His tongue tentatively explores her stiff length, tasting the salty pre-cum beading at the tip. He takes her in, inch by inch, until she hits the back of his throat, gagging him. Mistress guides his head, fucking his mouth, as he struggles to keep up with her pace. His eyes water, drool dripping down his chin, but he's determined to please.