He asked me to come with him as his date to this opened party that he and his friends are making. I said sure. I told him I'm bring a friend and he said cool. But then two of our other friends (guys) asked us what we're up to for tonight and I invited them to come as well. Is this bad? Should I tell a guy I'm bringing two more guys or just let it slide since it's not a private party and it's gonna be bunch of people anyway?