As a former lesbian or whatever that is, I have a bit to say on this subject...
Looking back, I don't think I really enjoyed sex with all but one of my gfs. And there were only five. With the four that left me rather cold, here's my diatribe on this:
Maybe I just have an unusually high level of sexual energy, but they weren't able to keep up with me. I had to adapt to the needs of each one, which was fine, but they didn't feel the need to adapt to my own needs. To make this clearer: If they just wanted their clit rubbed, I'd just do that. But if I wanted a good clit-like or penetration, they'd look at me like I was insane... and do to me the exact same thing I did to them. So I'd be left unsatisfied.
I tried to help them along, but they just didn't seem to care.
I know that if I waited a while, I'd find the right girl who was willing to give me everything and maybe want everything from me in return. But life didn't work out that way. I fell in love with Mr.S, and I won't be dating anymore women. Fucking them? That's different. In a couple years, we'll probably try adding another girl to the mix.
I dated more women than I slept with, though. And with them, if I didn't feel a spark in them... something kind of indescribable. I guess you'd call it chemistry, but it's more esoteric than that. For a couple of them, I didn't even kiss them. I would caress them and touch them, but never in intimate places, and I wouldn't kiss them. If I did kiss someone, I'd probably end up fucking them.