I can't be trusted in a /m session because cocks are so fun to play with that I'd constantly cock-tease and embarrassingly force them to pitch a tent with the way I tickle.
Looking like I'm about to touch it but instead go for *anything* else while slowly exhaling moist, suggestive 👄 air towards its rock hard tip.
A session that is now less about being tickled and more a superbly embarrassing *accidental* tickle-edging session, where it's genuine torture they want so badly and humiliatingly to ask me for "relief" from.
After which I'd... "oh, do you need to- *trails up thighs to their cock, softly tickling the skin right next to the balls* "
"There's the bathroom, for... *pumping motions*". You really can't take a little more tickling?"
... make their own ego be what keeps them strapped to that table, their cock constantly pulsing and leaking, trying to avoid cumming their brains out to my increasingly emasculating verbal taunts.