actually I know of no such thing and if I have something to say to you, I will. I am not afraid of your wrath or insults, I have heard it all before, doesn't rattle me in the least, I promise you.
In this case however I will will respond to @Dr.Suave
since he is the one who asked for my opinion about this
IMO, a quality woman can certainly have casual sex if she so desired, why wouldn't she? As long as she's honest about it and not misleading her partner to believe it's going to lead to some grand passionate serious relationship, it's all cool. Same for the guy.
The key word in there is "honesty," as well as possessing character and integrity. Which would include honoring her commitment and not stepping out (i.e. cheating/sex outside committed relationship). That would be a big NO in my book.
There are so many other things that make a quality woman, but with respect to sex (casual sex while single and no sex outside committed relationship) this is my opinion.
How hot she is doesn't have much to do with it, a woman can be extremely hot and be a lying sociopath (I know of one actually), a woman can have mediocre looks and be of superior quality and high character. As long as she takes good care of herself, physically and mentally, and treats herself and others with respect and behaves with integrity, those are the qualities that matter.
JMO, everyone has their own definition, there is no wrong or right.
I do feel inclined to respond to your assertion that "chances are" I have had casual sex but too embarrassed to admit it? Lol, you don't know me very well do you, clearly. I don't get embarrassed about anything I do, I OWN what I do, I take responsibility for what I do and if I were the type to have enjoyed casual sex while single (I am married now so it's a moot point), I would have no problem admitting it.