It may be a reference to a pattern I noticed when I was still dating. I noticed that it was usually (greater than 50%) the single moms that were the most daring, willing to explore, kinky, etc cetera, in the bedroom. It might have been because being a single parent (speaking as a formerly single father) doesn't afford a lot of spare time and on top of that, there are a lot of people not willing to date anyone with a child. So sometimes you are just very excited to have someone interested in you and are willing to go the distance even if it might not be the cat's meow.