I know you posted a long time ago, but wanted to chime in -- i've had that exact "girly part" problem. In my case, I'm almost positive it was due to cycling shorts bunching unevenly between me and the seat. I am now considering upgrading the shorts from Pearl Izumi "Race" style to "Elite". I tried some on the other day and they were much more streamlined and had a narrower chamois. I have a small frame, so I think that will help. Perhaps you are the same?