Push-Up Competition: How Many Can My Stepbrother Do With His Dick in My Mouth?

My stepbrother and I are very competitive with each other. We're always making bets and trying to prove who's the best. This time, we decided that whoever did fifty push-ups first would have the other as a slave for an entire day. I know he's stronger than I am, and he was definitely winning. I could barely do 10 push-ups! Still, I wasn't going to make it easy for him, so I got on his back to add some extra weight. He pretended to be annoyed, but I could tell he loved having me on top of him. How did I know? Because I took his shorts off to distract him and saw how hard his dick was. If he was so determined to win, he was going to have to keep going as I jerked him off. That was not enough to stop him, so I had to take things further. I sucked his cock dry as he kept doing the push-ups. Anything it took for him not to win. In the end, he still took the prize, but I think I was the real winner because his boner got so intense he fucked me right after. Maybe the only workout I can handle is getting my ass pounded, and that's okay by me.