Everyone has their own tastes. I'm not that into Krystal, physically – She has a great body and a nice enough face, but I don't like how she usually wears her hair. It doesn't work for her and turns a nice face into a meh one. In one scene she has her hair down and she is 100% hotter. Even like that, Skylar and Jessica are more my type.
Similar for Jenny. Not a fan of her look.
This doesn't mean I've excluded them. They both have personalities I like, and if I can have a casual thing with them why not? I'm not committed to any girl at this point (I'd commit to Skylar if she asked, or Jessica, but we're not there yet) and the sex with both of them is hot, plus if you're playing with the patch, that's a fetish I'm into. But the moment a choice comes and one or both of them has to go, I won't hesitate. It won't be like when I had to choose between Skylar and Jessica – I had to stop playing and think about that for a while, and then made a choice that wasn't what I really wanted, but taking into account the feelings of the girls it seemed like the right one, and I have a suspicion that it is the one that will get me both. But if not, I still think it was the right thing to do.