It may not be as common a feeling or belief as it once was. But it may still be. Maybe it’s women who still worry about it. I really don’t know. What I do know, is that in reality, guys do not lose respect for women who sleep with them too fast. Me personally, I actually gain respect for them. I think that guys only lose interest/respect for women they sleep with if the sex is bad. But how long a woman makes a man wait has nothing to do with it. Again, maybe times have changed to the point that men don’t lose respect for fast sex at all. And maybe women don’t worry about it either. But to the extent that the belief still exists, it’s a total myth.