Spying on my Straight Roommate (An Erotic MMF Voyeuristic Menage Story)

When bisexual Dave hears his hunky straight roommate Charlie having sex with his new GF, he remembers the time he spied on Charlie jerking off and how hot it had been. Drawn to Charlie's window one more time, Dave gets an eyeful of something he never expected, and much more. Will Dave get punished for being a perv and a peeping tom, or do Charlie and his girl have other, sexier plans for him?