My wife almost never cums unless she's on her back with her legs together. She's the only woman I've known who's like that. I like to make her cum as many times as she wants, and then receive oral from her in a 69 with her on top. I love the view! I also like the amount of control she has that way. When she decides to be greedy, and just sits up and fucks my face for awhile, it usually brings me right to the brink of orgasm!