Tie me up and leave me like that for 3-4 hours to be tortured by a milking machine, extracting load after load out of me and with no idea about when it's going to stop or how many times it'll make me cum. π΅βπ«π΅βπ«π΅π€€
This is the one of the few 100% bulletproof methods to assure that your sub/slave absolutely can't say NO WORDS at all. Only moaning and other "sound" are possible to "say" with its mouth completely filled out by the amazing gag by @moanspeak + muzzle.