I love having sex in a relaxed manner, with neither of us making an effort to have an orgasm, but just enjoying how good it feels and taking pleasure in giving each other pleasure. 69 is a great way to do this. Often, one of will have one of those orgasms that just "sneaks up" on you. Even then, it's fun to try not to thrust or grind, but to try to relax and just let the sensations flow. Actually, it takes an effort to relax during orgasm, but for me, this makes it all the more intense.
My favorite type of sex is oral, working on each other one at a time, preferably with lots of eye contact, so we can enjoy the visual stimulation of watching our respective "things" getting worked on by our partner, and seeing the pleasure in each other's faces.
However, it's great to have lots of variety, and as PussyWellington said in a previous post, it's a great way to spend an afternoon.