Ruined Orgasm after 3 months in Chastity

Description: My slave has had his cock locked up in chastity for over 3 months. i have decided to allow him an orgasm whilst his body and cock and balls are bound tightly to my bondage chair. after some edging with my doxy vibrator, and despite being warned that i did not want any accidents, it seems that the excitement gets too much for him as he blows his load prematurely and without my permission, so he is punished - i keep the vibrating doxy pushed against his now sensitive cock post cum to turn his enjoyment into suffering!