If you think that only to guys it is hard to hide the arousal, then you are wrong. The girls as well easy to tell whether she is aroused, just check her panties! Under the effect arousal girls pussy gets wet, and then her panties as well get wet, so you can see the wet spot on her thongs, figs or boyshorts. Depending on the degree of arousal, wet spot may be small and barely visible, but it can as well turn into a big wet spot all over her crotch.