spice up relationship sex

I started masturbating in my early teens, but I wasn't having orgasms (or at least I didn't think I was). In my mind, I never orgasmed until a few years ago (I'm 21), and this was with a guy who I had been fooling around with for a while. Soon, the orgasms became regular (only during oral though.) Now I am with someone new. He's very affectionate, he loves to please me, and is constantly looking for new ways to give me pleasure. We've been together for a year. I have an orgasm every time he goes down on me (which is happily quite often), and I've been able to orgasm few times from manual stimulation. My problem is that sometimes the lead-up to the orgasms are not that great. During foreplay, I find myself constantly becoming distracted with external thoughts.