There are a ton of free sites out there. The goal is to entice you to join a membership site which is okay, after all you get to see some hot naked guys.
This is one of those, I think, but it has a different look to it. It is themed, about having a physical exam. Supposed to be 60 pictures, and they are rather, well, interesting? Does tend to make one dream about their next visit to the doctor, and whether the paysite is any good or not, well that's for the review section to comment on.
For a free quickie site, this is different, for those who enjoy sex in the doctor's exam room.