Before I left for college two years ago, I had a short affair with David, who my mom dated and who basically lived at our house for over a year back while I was in middle school. She dated David right before she met and married my third stepfather, who was right before my fourth stepfather, now divorcing my mom. While he lived with us, David and I engaged in something I guess you could call flirting, but nothing physical ever happened between us, not even close. Still, there was something there, something heated, even back that long ago. I saw him again the summer after I graduated high school, when his oldest son got married. David had re-married by then, too, but during all the wedding-related parties and stuff that week, we found ourselves alone once and all the old attraction came back to life and we wound up making out for like an hour and then going to bed together. And it was incredible, totally unbelievable, for both of us. We dated secretly for the rest of that summer and we f***** constantly, but we agreed that we would end it when I went off to school, and we did that. It was hard for both of us, but we broke it off cleanly. As fate would have it, though, my love life went into a tailspin and then crashed last spring, and when it did, I called David. I did that just for someone to talk to, knowing he was married, and knowing that his marriage was a good one, and thinking that we might just talk occasionally, living over a thousand miles from each other, because he was always understanding and encouraging. But David being the kind person he is, flew to meet me and console me over the loss of my boyfriend and the horrible humiliation he caused me (a VERY long story), and one thing rapidly led to another, and we slept together again. And again. And again. And then he came back to school two weeks later, and we did it again for a week. And then I came home and we did it nonstop for two weeks. And now, neither one of us can stop it, and neither of us wants to. I don't even care if he stays married: I just want him in my life, in an intensely sexual way, but also in an emotionally supportive way. He IS my boyfriend now, and I am his mistress, and I love our relationship. I don't have any idea where it will lead us, but I don't need to know or care to know right now: we'll find out where we're going when we get there. Right now, we are both giving each other what we need, and we make each other endlessly happy. I've seen my share of bad marriages -- believe me, my mom has had more than her share, and I know lots and lots and lots of other unhappy married people -- so I don't have even the slightest amount of guilt about David stepping away from his marriage to be with me. What we have is true love, and I've made it clear to him that I'll never jeopardize his marriage or force him to divorce his wife or embarrass him in front of his children or parents. We are a wonderful couple who has the best s** in the history of the world, who support one another no matter what, and who think of the other first, before self. What we have is better than any marriage, and what we feel is love. True love. And no one can criticize that or ever take it from us. We are a couple.