Visual stimulus for girls?

[Kochanek]

It is often said, that boys usually get aroused by visual stimulus.
But how about girls? Is there anything you really get horny by only seing it?
Perhaps a couple having sex, a guy or a girl masturbating, etc...

[suzzysmith2012]

I like to sometimes watch myself masturbate in my mirror, and when I'm having sex with him we sometimes watch ourselves too.

[Lost in the Echo]

This isn't really appropriate. :locked: