getting bored

Okay so my boyfriend and I have been together have been sexually actively for a year. We've never had problems with sexual feelings until now. We decided a little bit ago that condoms don't work for us anymore. It takes a really long time for him to finish, and because of that it dries me up and it is so painful. So we've been going raw but now that's not the problem anymore. (PSA: this post is not about pregnancy scares so you can miss me with all that. I just want to know how to get it going on again!) Usually he can finish in no time if he bends me over, however, lately that isn't the case. Now he can't finish by himself. The past like 5 times he's said "babe I think you're going to have to help me" so i have to ride him into the sunset. which is fine but I would like to know some ways to get it back to what it use to be. We usually only stick to riding, missionary, and hitting from the back. I think we might need to shake things up. i'm a crazy gf for even saying this but I feel like it's a higher chance of him cheating on me if sex isn't as fun with me anymore. I feel like it's just the same thing for him. So if you have any ideas on how to make things more interesting LET ME KNOW. positions? oral tricks? clothing? ANYTHING?