My most humiliating and embarrassing experience was when I came while being spanked bent over the knee of a beautiful Mistress with my cock between her legs. She ordered me to lay this way. It just absolutely took me by surprise. It happened like as involuntary reflex, sort of like having a wet dream, I had no control. Maybe she knew this would happen but I had no idea it would. I had a lot of new experiences that day but cumming like that was very humiliating.