/soy/ - Soyjaks

Women squeeze their legs together and it makes their pussies feel good. Sometimes they do this in public.
Women's bladders are adjacent to the internal parts of their vaginas so when they hold in their pee it can feel pleasurable. Sometimes they do this on purpose.
Many girls who have owned a dog at one point got slightly aroused when their dog tried to stick it's nose in their crotch. Sometimes they get the impulse to let it continue. A small percent do.
Some women masturbate using the vibrations from electric toothbrushes.
It's common for mothers to experience involuntary sexual arousal when breastfeeding their babies. Some even full on orgasm from it. This is due to the combination of hormones released when breastfeeding, and their sensitive nipples.