It definitely does for my wife. She really enjoys the feeling of not being able to stop me, and I think that messes with her head, since I love to taunt her constantly while I'm tickling. She tells me all the time that she goes even crazier because she gets mildly desperate to escape the tickling, but I just keep taunting her and tickling her more. Since we don't use safe words, she never knows when its going to stop.