Was Sirius really a player?

Everyone seems to think he was. In almost every fanfiction I've read about Sirius in his school days, he is portrayed as a player. But was he really? Why do people think he was a player?

- Because he was handsome
- He was popular with the girls
- He was James friend, who seemed to be a player

Those are all reasons I've seen, but none of them mean that he was a player. Being handsome does not mean that a boy will take advantage of girls. Sure, some do. It's stereotypical to say that just because Sirius was handsome meant that he was a player. Also, James seemed to...