When my husband and I have sex, we mess around a bit before intercourse, then once we start intercourse, I usually manage to keep my fingers on my clit and work myself into orgasm that way. That doesn't need to be a lot of work for him.

I've been sexually active for about 20 years, the sex gets better pretty much year by year, and I still have had maybe a total of two or three orgasms without clit stimulation.