I remember when I was still at school, I must have been about 15 at the time, going to help a girl 'friend' of mine called Kirsty.
She was in the swimming team that I captained and most of the girls knew not only was she very shy but also very ticklish too (especially her belly and feet.)
One day on a school trip to the beach, about six or seven of them surprised her while she was sunbathing alone in the sand-dunes, held her down and started tickling the crap out of her. They were all in their bikini's so there was plenty of bare flesh to tickle. Infact I seem to remember there being cleavage and little pert bums everywhere.
Naturally being captain and seeing (and hearing) another team-mate in distress I rounded up a couple of my mates and we went to rescue Kirsty.
It quickly turned into one of the biggest and best tickling fight that I have ever taken part in.
Of course the girls didn't stand a chance, we saved Kirsty and to help her get her revenge on her 'torturers' we pinned down a couple that we 'captured' and letting Kirsty go first, took turns to tickle them into giglefits, before eventually carrying them down, one at a time, and throwing them in the sea ( which if you've ever been to England you'll know is not exactly warm.)
Its also a day that sticks in my memory beause it was the day when I found out that Kirsty may have been a shy little thing...but she was a great kisser.