His hairy swinging balls.

My tongue slides down his hairy crack to those big hairy swinging balls. They reek of urine and sweat, all dried and crystalized, but I swipe and drag my tongue across them anyway.

His hips flex, and he rams hard into the bitch's throat, pins her head tight against the side of the stall while I suckle and slurp on his heavy balls.

"OH fuck yes you cunts," he groans as his balls start to pull up inside him. I let the balls fall from my mouth and start licking around the bitch's lips, my tongue traces hers, dances around the base of the man's cockshaft.

His hips start to twitch, and I can tell he's pumping a massive load deep into the bitch's throat. I'm envious of her. And a moment later, he pulls out.

The bitch starts coughing, cum leaks out her nose and over her chin, and I lean in to lap at the thick sludgy gunk. It's so slippery and sticky and completely irresistible.

That's when he says, "Fuck I'm ready for my piss."