My deskmate asked me to go to his house after school.

Then go. What does it matter? It's all men anyway. It's usually a game of inviting men home. I don't think there is any demand in this respect. Sometimes I don't think about myself. It doesn't matter if you go to see it. People can call you home. At least I really regard you as my friend. Otherwise, you won't even be invited home. You don't have to think so dirty about your own affairs and so bad about people. Maybe it's really just for playing games. After all, there are good games to play, and I hope to share them with my good friends and brothers.