You can have your make-up, conjugal visit, pity, grudge sex…
Give me some night out without the kids, in the hot tub, liquored/potted up, hotel sex (with the bonus of sleeping in and having morning sex).
Reminds me of one of my father’s jokes. He said my stepmother had cut him off six months before, and when he found out about it last night he was really pissed.)
The sex that’s so intense the cats actually stay off the bed for a few minutes.
My favorite is either the when-the-kids-are-asleep kind or the I-don’t-care-I’m-locking-the door-to-the-bedroom kind.
The other kinds just went towards the wayside with those “Daddy/Mommy…whatcha doin’…?” interuptions. 
As for the cats… tell 'em to find their own damn girl.
Stoned sex is pretty damn good. As is “just got back from a weeklong business trip so we’re doing it on the living room rug as soon as I get home” sex.
But the best I’ve had so far is “in the bathroom of a dive bar after a few drinks with her bent over the sink” sex.
I’m kind of saddened by the fact that the chance for fuckbuddy sex (at least on a regular basis) and random hook-up college sex has passed me by, but things are so good now that I think I’ll get over it. 
Came to post the same thing. That’s actually called being “a low life cheating piece of shit” to me, though. It’s not grudge sex, it’s “slimeball sex”.
But to answer the question, the best sex I ever had was “longing for her” sex. Sex with “a woman I tried to get, but had a boyfriend or husband at the time and now she’s single” sex.
Talk about Moons Over My Hammy!
Right now, I’m in the crowd that says “sex with someone else” is the best kind of sex. Being single really sucks sometimes.
Seriously, work in the mental health field. I agree that the participant probably has some deep seated issues, but having sex with the depraved would rule out a lot of Friday night hook-ups.
SSG Schwartz
Hot, hard, god I knew onsite computer service was the way to go sex .
Yes. When our kids were little leaving them with someone and going to NY and staying in a hotel was very nice.
Sex during the lunch break when I was taking my GREs helped me get into grad school.
And damn the bunch of you. I’m going to have a hard time facing a Denny’s menu ever again.
The sexiest kind of sex I ever had is… er… difficult to explain.
Combine breakup sex + grudge fuck + animal abuse. A recipe for [DEL]disaster[/DEL] fucking amazing fucking.
You think I’m kidding?!
I dunno. Was the animal in question a baby goat?
::d&r::
I’ll second (or third?) delayed sex. I had surgery the end of February, and just got “cleared for takeoff” by my doctor.
Hubby will be home this evening; the weekend should be. . .interesting. 
well… I remember this one time in an empty office room =)
a little oral performance on the driver while cruisin the highway…
a little spanking,
biting,
tugging on the hair,
and a slight firm grasp around the neck
mmmmmm - yummy
but of all of them - the first time after some long awaited anticipation is really really nice (if it’s good - but if it’s bad, oh man what a let down!)
Hell, being married to someone taking Lexapro sucks.
Best I ever had was with my wife (aww, ain’t that sweet). It wasn’t a hot passionate rutting but a slow, gentle, quiet, long lasting, looking into each other’s eyes, climaxing at the same time, toe curling, weak-kneed intense experience. When we finished she turned to me and said, “That was so good I think the neighbors are going to have cigarette.”
Second best was with my college girlfriend, a nympho oral sex junky who was into doing it any time, any place. We were in the music hall in a piano practice room, doing it on top of a grand piano. The doors couldn’t be locked from the inside, we knew we only had a short time until we had to leave, people were walking up and down the halls outside. We were going at it like a couple of animals while musicians in the next room were practicing their music. I noticed that we kept changing pace as the musicians did. We had to keep quiet so no one would hear us banging on the piano (in more ways than one). Man, she was a lot of fun.
The sexiest sex is what other people are having.
Especially when you are looking through their windows as they are having it.
That would explain why there’s so much money to be made in filming it.
Suprise sex!
You’re sledding in the snow, wife pulls you into some bushes and you have freezing your nuts off almost public sex. Its different everytime but this happens about once a year. She likes almost getting caught. She may change her mind once we ever get caught.
I was mentally constructing pretty much what Lanzy said before I got that far.
Spontaneous sex. One partner grabs the other and has their way with them.
That, and coming home from work to find your SO at the door. Naked. Or at least in the bedroom.