Stacy's Mom 5 - Dominated by My Girlfriend's Mother

I've been dating Stacy Gardner for quite a while and things are going well, except for one Stacy's Mom. The neighborhood's hottest MILF has decided that I'm her plaything. When I'm not trying to get in Stacy's pants I am trying to satisfy her lusty mother's urges.Now that Stacy is off at college and knows all about me and her mom, we have an arrangment. While she's gone, I can have sex with her mother. When she's in town, I belong to Stacy. But now, Stacy's mom wants to make things all official. She has drawn up some sort of sex contract that she wants me to sign and it puts her in charge of my love life. I just started community college, am I already going to be turned into somebody's sex slave? And, also, do I actually mind?This 8,000 word story is romantic erotica about the desires of an older woman and a younger man just becoming sexually active. It includes humiliating public sex, female dominance, and scorching sex between an older woman and a submissive younger man.