I LOVE giving blowjobs and really get into it, but my SO has started complaining about my teeth. Once he does, I get distracted and can't concentrate on my technique. I put my lips over my teeth (the gum thing), but as I take him deeper into my mouth, I guess my back teeth get in the way and start scratching him (I have a small mouth). Its very frustrating because I also love to deep throat, but not I'm afraid that I'll hurt him. ANY suggestions??