So i have a guy who loves to be restrained a push the limit of pain. I want him to get the most pain i can without really hurting him.
Tried: small dildos
Hot wax. Flogging, cock and ball ring, nipple clamps...always fall off! Paddling...biting
I need ideas on what to try next. No blood or burning..lol. He doesnt want to be humiliated. I have an under mattress restraints. What next?!