Peter's jaw dropped at Remus's words, and he looked from friend to friend in shock. They'd been keeping this secret for eight years and now it was out. Only to two people, sure - for now.
"Oh my God," he said in a small voice. "Oh God, Moony, I'm sorry." It wasn't his fault, but he was still sorry. This was awful. "What are we going to do?" The part of him that was a Death Eater immediately suggested Obliviating them, but he refrained from mentioning it aloud; his friends would never go for that, the idiots. Rather protect their honour than their friend, he was sure.