I was the first to respond to this young womans post and did so without a lot of thought.  Now I have something to add.  I have a 19 yr old and asked him what he would think if his 18 yr old CAH girlfriend wanted to have sex with him and said she had something to discuss with him about her body first.  This is what he said to me.

"Mom, having a 9 yr old SWCAH sister who was so "bad off" at birth and seeing all the surgeries, physical troubles and issues she has had to go through I personally would be very understanding by encouraging my girlfriend to "wait" especially since I am not on the market to be married anytime soon and would be wasting this young girls time if she wanted or expected any committments.  If it was my sister or my girlfriend I would think she would want to wait to make very very sure that the person she shares her very special body with is the one who wants to be with her long term maybe even spend the rest of his life with her.  I would think she wants an understanding, loving, committed relationship before she gives herself to him in a sexual way. Why on earth would she ever want to tell this to a new guy over and over again?". 

An opinion of a non CAH 19 yr old male with a CAH sister.