Realizing that even nice girls got horny and wanted sex was an awakening to Marc. Sex isn’t something guys do to girls, more something guys do with girls. It’s a cooperative effort, not necessarily a seduction, rape, or a power struggle like some of the radical feminists say. We are in it together, literally.
Once Marc got into Rhonda’s pants he would probably have to publicly announce her as his girlfriend, limiting his sexual opportunities with other girls but insuring his near-term sexual future.
Like a lot of young guys his age, his thinking was basically all about getting off. She’s a nice girl who provides me a lot of fun, pleasure, and satisfaction, but there are lots of other nice girls out there to be explored and enjoyed.