One of the following: Either the female has been touched on the clit, brest, vagina or just the thought of sexual arousal. Visual data: porn is a big stimulator but i recommend not watching it, get a...
A vagina can get wet without sex, exercise can also cause the vagina to get wet as well as sexual excitement, a wet vagina is nothing to be worried about and is common, a dry vagina would be more of...
Vaginal Discharge.
(see below related link "Discharge").
You most probably have unusual discharge. Vaginal discharge is the result of secretions produced from small glands in the lining of the vagina...