Verry interesting.  Chloe, A.K.A. Carmen, was one of the hottest girls around several months ago, but has been surpassed by more reliable and dependable ladies.  However, if her new-found reliability and dependability are for real, that's great, and I'm sure she'll prosper.  I know I'll give her another chance!
As for Sydney, forgetaboutit! She's cute, but an absolute DUD!  My friend who took one for the team at a recent party said she was totally cold and as non-GFE as a girl can be.  Let me preface this by saying he is a well-known shy hobbyist who is an attractive, patient man in his early 30's with excellent social skills.  He was SO disappointed after his session with Sydney that he stopped at an AMP on his way home from the party!  
I would suggest forgetting about Sydney until she hones her skills--and perhaps Chloe can help her with that!