Remus looked shocked for a moment but then it made sense. It was just about right, wasn't it? To be in that sort of circle and recognise the signs. He was a walking fucking sign that said AIDS these days. "I, uh, I'm careful. I don't want to give it to Sirius. I'm always safe. It was... it was my first time. With him."

He didn't want to get into it too much but this guy knew Sirius and he didn't want to give a bad impression.

"I have haemophilia. Genetic lottery on my end, always full of bad luck. It was in the blood I got, after I had an accident. I guess they didn't check it." He swallowed hard and then looked off at where Sirius was. "I didn't tell him. About it all. He doesn't care, how weird is that? That I don't have to explain to him. He just likes me."