i wasn't saying that at all, what i'm asking is what is the motivation behind this behavior? it's obvious that she knew, how can you not know that half of your ass is hanging out with no panties.
There was a gal working out in my gym the other day w/her butt crack hanging out too, but she was wearing workout pants. I kept saying the words "butt crack" while I was talking to my workout partner about other things.
Does that lady work out in jeans? If so, that's kind of odd. But as for the butt crack, who really knows if it means anything or not. She could be attracted to you, she could be "advertising" for a date, she could be just wanting attention and/or is an exhibitionist. The possibility is also there that she is unaware that her butt crack is smiling at all who walk by