In another post I told about how my current girlfriend accomodates my foot tickling fetish by placing her bare feet on my chest when we are in bed. I tickle her feet with one hand and get myself off with the other. The routine is for her to curl, wiggle, and spread her toes while I artfully tickle her soles. She experiments with sexy toe and foot movements to see how quickly she can make me cum. She is able to take this because I modulate the tickling so that it doesn't become too uncomfortable for her. She likes slow, erotic tickling, but she can't take hard, aggressive tickling. With the slower kind she can rotate her ankles if the tickling starts getting to her. She can't take five seconds of the harder kind of tickling, though. Once in a while she will let me do something that drives her up a wall. My favorite foot tickling game is where I get her to curl her toes back and spread them apart as far as she can and then hold them like that while I slowly and methodically tickle in between each toe and up and down her arches with an electric toothbrush. I love to see the strain in her toes as she tries to keep them spread apart even though it tickles her like crazy. It is also hot to hear her tell me how badly it is tickling her (she does cute 'tickle talk'), especially when I bear down on her sweet spot which is just below the ball of her foot and at the top of her arch. The time limit is set on how long it tales me to cum which usually isn't very long at all...maybe a minute or two, because it really turns me on.