Agreed and thanks! There are definitely a lot of variables. When I first met my wife, I'd go visit her on the weekends since she was many hours away. After a few weekend trips, I went to hug her from behind. When I did, I smelled her neck. She wasn't creeped out or anything because we were already being intimate. however, she teases me to this day about it. Why did I smell her though? If the other person naturally smells amazing to you, I'd swear it is a signal that you'll have good offspring. Animals smell each other in that way too, so perhaps there's some real science behind it. ha ha