I've fantasized about being tickled or tickling someone else before while playing Mario Kart, and even made it a part of one of my stories I never posted, but on some level this would also probably annoy me. Especially depending on the game I was playing.
Sometimes my wife will come over and start tickling me while I am playing a video game and I'm like no, don't touch me! I can get really into my games, meaning no distractions.
It happened the other day during a boss fight in Final Fantasy 7 Rebirth and I ended up dying. She's done it to me before too while I've played Elden Ring. Again, more annoying than cute, lol.