I looked down my body to see my erection bouncing and swaying as I shifted myself under the water spray. I'd gotten used to having one for the last hour or so. Being about these girls left me in a state of arousal, and I needed to sort it out before I made a fool of myself. It had been awhile since I felt the urge to masturbate. I was a healthy young man with a great sex drive, but in the past, I'd had a few girlfriends and even friends with benefits, so I hadn't needed to jerk off all that much. But lately I hadn't really felt the...