A pervert

It wasn't. This time he was middle aged man.

He was (mostly) clothed, his fly being the only thing undone, though his rather sizable cock hung flaccid between his legs.

"Hello, you sexy thing," he started.

Walter, the bombshell, leaned into the camera, giving him a remote motorboat. Then, he spread his legs and opened his vagina with two fingers. He gave a wink to the stranger and a knowing look to Tim.

"Hey, you don't have a boyfriend there, do you? He's not gonna get mad if I jerk myself off to you, is he?"

A coy smile playing on his lips, Walter shook his head slowly. Tim made a spinning motion with his fingers, and his dad turned around obligingly, presenting his fat ass to the camera. Tim stepped in to frame, lining his hips up with his father's jiggling butt as the stranger pumped some lube onto his hands.

"You ready for a good fucking, little bitch?" Tim asked in the most manly voice he could muster.

Walter, catching onto his plan, nodded his head meekly. Just play along until the very end. After all, who doesn't like a good twist?

Tim began to thrust his hips forward, as if miming pounding his cock into is father's tight little hole, digging deeper and grunting in time with the man on the other end of the screen. "Oh yeah, Veronica," he moaned, coming up with a name off the top of his head. "You're so tight!"

Meanwhile, 'Veronica' had to turn her head to hide the smile on her face. As she bucked her body back and forth, all she could think about was the priceless look on the dude's face when he realised he wasn't dealing with an actual girl. Even if she was enjoying the sexual pantomime a little bit...

With a groan, Tim faked an orgasm, giving Walter his cue. He let out a loud, distinctly male moan, before dusting himself off and giving the camera a smile. "Sorry to disappoint, but you haven't been jerking off to an ordinary young couple!"

"Fan-fucking-tastic!" The stranger replied, taking them both by surprise. "Oh, you don't know how long I've been looking for this fetish. Though I haven't actually cum yet... would you mind going again?"

"I don't think you understand," Tim said. "Or what do you think is going on there?"

"You're a guy, banging a woman who's got a really deep manly voice? Which is totally cool."