Hi Tahlia,
I really think Sexercise is a fallacy, although it's only what I think.
I couldn't know for sure because I'm not in the business of Sex.
Can any other WL's confirm this, that it is possible to lose weight through SEX.
What about diet?
Mainly, as far as I've seen women don't have to do much unless there in the Cowgirl position & I suppose their arm & neck muscles may be used a lot.
Most Guys like me & my other Gym friends, we have from time to time confirmed that we do work out for our own health benefits but also to keep our women happy with copious amounts stamina required for long periods of pumping with our stomach muscles.
Most of us average 60 plus sit-ups in one go, 3 or more times a day, as just one of the things we do to keep in shape & I'm 54yo.