Handjob Humiliation💋
Tell him to masturbate by himself while you watch
Ruin his orgasm by taking away your hands at the moment when he cums.
Pinch his nipples
Put your or his panties in his mouth, yummy
Read a magazine while you jerk him off
Wear medical/household gloves
Cuckold dynamics reveal the most honest desires inside the darkest taboos. It may look like a boundary violation from the outside, yet the boundaries are defined by two people alone. A level of openness not everyone can handle.