Cock Teased And Thighs Whipped In The Sling

I have slave bart strung up in my sling and tonight i'm in a mood to mix pleasure and pain as only i know how. i give him a hand job to get his cock nice and hard, and then i tie up his cock and tease it some more with a hand job and slapping the head of his cock with my crop. i tie a vibrator to his cock and drip hot wax on the head of his cock and balls. this is just delightful watching my slave squirm and moan. but there can be no pleasure without pain and so with the vibrator tied to his cock, i begin whipping his thighs and stomach, over and over until his cock is throbbing with pain/pleasure. i think i better stop before he cums all over himself, lol.