........crosslegged and moving their legs movement were masturbating using their pelvic muscles. Anyone here noticed that?
It was in the 1990s when there were many sec school horny gals
Squeeze Play
This is an intriguing technique because it can really be done anywhere, even while you're fully clothed! Simply squeeze your thigh muscles together and then release, repeating continuously until you achieve orgasm. It may help to cross your legs at the knees for more control. If you do this in public, just make sure you don't scream out in ecstasy!
http://www.improvingsex.com/articles/masturbation/masturbation.techniques.for.women.htm