Well, I don't mean to offend, but on the first set you have some pretty juicy ass cheeks. On this picture you seem more slim.
Also, it doesn't really change my point, somehow you can't post other people's pictures like that. You will need to verify if you post regular pictures of certain persons, in a way to show that it's done purposefuly by the women exposed here. You could be a man with some private pictures trying to monetize it... So just for safety you should do some kind of verification. Verify yourself and then pose in the pictures with your friends, it should be fine.