Re Howard Stern's Robin Quivers.
First of all, her name is spelled Robin, NOT Robyn.
Second of all, she will NEVER EVER do it. EVER!
Third of all, when Andre tried to tickle her foot, try to remember that Robin is a control freak, ok? She would NEVER give herself up in public. Not for Howard, not for the show, not for her Mr X. In private, who knows.
She probably IS ticklish on her feet, but she held back & 'acted' like she felt something icky. If you remember her reaction, she stuck her tongue out in a slight 'Yuck' face. Now, think about it. What is disgusting about having your bare sole stroked? If it didn't tickle, she would have just sat there with a blank expression.
NOW . . . in the movie Private Parts, Howard got down on the floor outside her apartment door & took her show off & started to kiss her foot. I remember Robin saying that when they did that take several times that Howard tickled her foot & it DID tickle. You don't see her get tickled in the final cut of the film, but God knows that the outtakes have.