I've read your column for as long as I had access to the internet and was interested in sex, so here goes: I'm a 27-year-old male with a 42-year-old girlfriend. We met at work; we were both going through divorce. At the beginning, holy moly! My dream girl in the bedroom. We've been together for a year, and the sex is still the best I've ever had—she says she feels the same—but it's vanilla. I am assertive and in-control in the bedroom, which works for both of us, as she prefers to be passive and wants me to make moves or switch it up. I want to do other things, but she doesn't want to do anything anymore other than missionary-position sex. Anal, oral, watching porn together, bondage, voyeurism—she's not up for any of it. There's always an excuse: "I'm not young like you," "I'm not flexible like you," "I have done that before and don't like it, no, no, no." Do I just suck it up and be grateful for what I have or what?