Is Severus the Cradle Robber, or is it Naruto? (BoyxBoy)

Naruto had become one with the Kyuubi, after surviving the war. He had lived a long time, watching everything change in a blink of an eye. Nothing special ever happened in his life until he came across a family in a Zoo. A few days after he took in a boy a letter came for both of them. Naruto didn't think much of it, that is until he started to have feelings for a certain teacher?