Charlie making those dirty sounds and egging him on really worked on Gavin. He also loved how she commanded from that position. He still felt in control but she had a grip on his reins too. His knees would be a fucking bloody and dirt filled mess but he could care less.

"Uh." Now he had to think even while he was keeping up his hard pace. "On your ass. And down your crack on your asshole. Fuck it'll be all over you and like on your pussy too." Gravity and all. "Ya want that? Huh?"

With a wide open palm he smacked her ass and produced a loud clap. He watched the skin get red and gave it another go just to see if her body would react and clench around his cock from the jolt of the spank.