One night as we lay in bed, you tell me that you feel like having sex. i tell you that i don't feel into it tonight, but i would be interested in watching you masturbate while i lay next to you. i've been less sexually active than normal, and when you start talking i'll let you in on why: i have deep, dark desires and fantasies that i'd like to explore with you. as soon as i begin describing them to you, i observe that you become noticeably more aroused, and before you know it, you've agreed to participate!