I lock his cock in a steel chastity and tease him without mercy. I suck him hard while the chastity prevents his full erection and causes him excruciating pain. I keep sucking him till his cock looks like a real rainbow ,there are red,blue, indigo, violet colours as well. He desperately begs me to stop but I have a better plan for him. I force him to fuck me with his locked throbbing cock till I get a huge orgasm!
