Well, around 1994-95, I was coomunicating via letters with a tickle fan in his early 40s named JN ( 'Jim' was the closest I ever got to knoeing his real name).
Anyway, in the 70's he lived in California and was friends with a small club owner there. Most of the band who played- or people who came buy to visit - were of the Punk/New Wave variety. Being friends with the club owner, JN used to hang out backstage in the little green room of the club. There he tickled Nancy Spungen's belly button ( he: "Are you ticklish"?,... she: "Insanely!") I'm not sure when this happened, since I didn't think she came over on the Sex Pistols U.S. tour, but it could have been later, after the band broke up.
Wellsir, he also clames to have tickled Annabella from Bowwowwow back when she was like 16, 17.... oh God! I got to meet her 2 years ago and she's still rather beautiful in that unusal, exotic way of hers.... whjat a lucky guy! Feet and ribs!
Well, finally, he mentioned getting abckstage to a Runayways concert, before Joan was going to get big on her own in a year or 2. He asked if she was ticklish and she said No, not even on the bottoms of her feet, but she loved for someone to stroke her soles because she found it relaxing. Joan wnet on to say that on the tour bus the entire band would jump onto their drummer ( Her last name was Fox, I believe) and tickle her. That's it!