Femdom Triple Ruined Orgasm Cock Milking

My sub is straddling a chair and restrained by his ankles to it with his cock behind him pointing downwards giving me easy access to empty his sack just in time for Christmas. I proceed to edge his cock from behind with my hand and fleshlight quick shot stopping before the crucial stroke and squeezing the base of his cock tight to stop the orgasm, then I expertly use one finger to tease his frenulum enough to eject the first load without an orgasm. After a short pause to let it dribble out I resume the edging and quickly tease out another two consecutive frustrating ruined orgasms. After the third ruined orgasm his sack is well and truly emptied just in time for Christmas and his cock is super sensitive so I treat him to some post cum play.