anal question

I know there's a lot of these but my boyfriend really wants to try anal... I like making him feel good and I kind of want to try it, we've been dating for over a year now and I trust he won't pressure me. I've told him I want to wait until I'm ready but I'm not sure if I'll ever be ready! We're both 16 and I've heard so many awful stories, and am I too young? He thinks we'll be together forever (I don't really) and I don't know what to do... Does it affect ahhh normal passing at all? Is it safe to use lube? Is it okay to not use a condom? Should I let him come inside me? Please help!!!! X