My guess is that she's trying to go after what she (or her agency/manager) sees as three different market niches.  I guess that "Sophia" is supposed to appeal to the client wanting a "classy" look, while "Jessica" is there for clients who want to try a little kink, and "Paulina" is for clients who are looking for something a little sluttier than "Sophia", but not as risky as "Jessica".

Then again, it may have something to do with paying for a photographer to do three sets of pictures, and not being able to decide which one you'd rather go with.  

Don't want to start anything, but she looks like a man that is post- op. I mean, Look at her/him and look at ts/tv section on eros. I saw a show on HBO and there was a guy that looks just like girl. Think about it

...I was just about to book a "triple" with Sophia, Jessica, and Paulina thinking it would be sorta like triplets.