Honestly, I don't have a problem with Hugh Hefner having three young gf's. Like Stefka implied, beauty for money (not judging if it's right or wrong, it just *is*). The four parties involved seem to have an arrangement which satisfies them all.
I happen to think Bridget is adorable, and seems pretty bright. Kendra's like a typical teenager, preoccupied with self-image more than anything else. Holly seems to be the most bland of the trio. Just my opinion.