Just watched an episode of TLC's The Last Resort and it had the couples switching off using different types of paintbrushes to try and stimulate different parts of their bodies. In any case, Stacey's husband used the paintbrush on the bottom of her feet and got a pretty good reaction. She was wiggling and laughing nicely. Then during a cut scene with the producer asking questions about the experience; she went on to say how much she enjoyed the tickling. Relatively decent mainstream scene all in all.