If you ask me, I think the girls in this day and age are just a bit too promiscuous.
I hate those skimpy little shorts that they wear. They might as well just not wear anything at all. Maybe I'm just a little old fashioned. I'm only 42 so it can't be my age. You may want to talk to a doctor about this if it is bothering you that much. Otherwise try to alter your dream by thinking about something else.