I have had way more sexual partners than I care to admit. My husband has only been with me. I wish he had been with more people before he met me. I feel a little guilty that I've had so much experience, but now that we're married, he's pretty much limited to me.
Oh I know that I could give him permission to sleep with others, but I am just not that secure. I would worry that he would fall in love with someone else. Plus I would worry about him getting a disease or getting someone pregnant.