I am a man in my mid-30's, I've been married for 10 years to Elizabeth, a pretty blonde woman, with nice breasts, a round face, wavy blonde hair, and the petite body of a former dancer. She is lovely, but also incredibly controlling in bed. For example, she has never once allowed me to make her cum during sex. She always waits until I've cum, and then quickly finishes herself off. Every time it seems like she's getting close to an orgasm she holds back, and refuses to cum until we're done having sex. I find this very frustrating, but she has told me repeatedly that she's not comfortable letting go of control. One night, I've had it. I have secretly swapped out her lube for a magic lube that increases the pleasure a woman feels during sex. Using this lube, there is no way that Elizabeth will be able to hold back her orgasm. We start having sex, and as she starts to get close to cumming I see the familiar signs of her starting to hold back... only this time, she can't. Her face grows alarmed as she tries to stop herself from having an orgasm and feels herself losing control. She says things like "wait... slow down. wait" etc, but I keep pumping her, determined to make her cum for once. I eventually drive her past the breaking point and she cums harder than she ever has in life. Afterwards I see a look of awe, and anger, as if she really didn't want to give me the satisfaction. I feel great though. Tell with creative prose, dramatic tension, and lots o dialogue. Tell in present tense.