My first experience of seeing a girl pee : I was taking a bath at my girlfriends house and it was custom to leave the bathroom door unlocked while taking a shower or bath.
While I was bathing, my sister in law came bursting in, she really had to go! I just can't hold it !! It happend really quick and although it was split second glance, I will never forget the perfect shaped buttcheeks, the blond furr and the strong beam of piss through the pubic hair just before touching the toilet seat !