Any partner I`ve been with, has been able to go more then 3 times in a night, (sometimes, much more.) and I`m pretty sure I`m not selecting them out of some mystery isle at the grocery store.
This is why I don`t read all these quacky books. I`m sure as general rules of thumb, these books are just ducky, but I feel I`d be missing out if I went into things preconceived, with 'what the book told me' expectations.
It would be a pity, if we had sex once, and I thought; ' Oh well, he`s probably done" and left it at that.