I guess that when people truly aren't forced into something and there's no harm, why refuse?

In that particular case, it is in fact not really confortable to lie down for a long time and I'm almost certain those ladies are either forced or enticed into doing that. That would then be a no.

Edit:

Quote Originally Posted by XanBcoo View Post
That's the kind of thing that sounds sexy on paper but in practice it just looks both disgusting and unappetizing.
Well, it sure is different from having the idea with your girlfriend in the spurt of a very playful moment.