Sunstone is such a good graphic novel series. One of the most realistic narratives I've read focusing on a BDSM relationship (other than the fact that the characters both happen to be extremely attractive, live close to each other, and one of them is rich and has her own personal BDSM house/dungeon set up along with several friends who can provide custom gear and also are well respected in the nearby and highly popular BDSM club). Definitely worth a read though - and tbh i would BARELY qualify it as "porn". Really more of a romcom with some sexual content.