His chest

You pull your cock out, the retraction making a loud pop sound.

"Flip over."

The young guy slowly rolled over. His face was flushed and teeth were gritted. His cock swayed at half mast. You shimmied up until you were kneeling directly over his abdomen. Your cock pointed to his chest. Going to work, it didn't take long. Your hand and cock were slippery and the arousal was through the roof. You grunted as you laid your seed all over his sweaty chest. One shot even hit him on the chin, making the naked man grimace. As you rode down from your high, you looked down at your work. Your target wasn't impressed, but made not effort to move. You wanted to keep using him, but wondered what to do next.