Aw that's so nice! Make sure you ask him and then what you're paired you can put each other in your signatures.
There's also something called the PC family, although there isn't a thread dedicated to it anymore. It's like a fun game where, because some people are brothers/sister, it makes a connection to other members. Since you're Sakazuki'd big brother, and I'm Sakazuki's pair, that makes you my brother in law. See what I mean? On PC, we're all friends, and we all talk and share a common interest, so we form a big family! n_n; It's part of why I love PC so much.