Femdom Blowjob with Ballbusting and Ruined Orgasm

Description: My slave is kept in chastity most of the time and rarely is he allowed any satisfying release, but today i'm going to allow him a rare treat. he's getting a blowjob, but as always there's a catch. i want him to remember who's in charge, so i'm going to stop sucking every so often and batter his sensitive balls with my fist. the poor slave thinks he might get to cum in my mouth? hahahahaha, yeah right! i pull away just as he blows his load and laugh hysterically as he suffers a defeating ruined orgasm.