I'm jerking and stroking his bound and helpless cock and playing with him in edging game. I'm keeping him on the edge and don't allow him to cum so his cock is sweeting with a lot of precum fluid. But unfortunately he finally is able to cheat me and start shooting his cum load in ruined orgasm so I have to punish him. I waited a moment until his cum stop flowing and I decided to mercilessly bring him to cum again. It wasn't easy but finally I achieved my goal and he cum again.