Jeez, Skald, we get the idea! You don’t have to tell us twice! 
This thread just once again proves to me the vanilla-ness that is (well…was, seeing as I have none right now) sex life, through no fault of my own. No girl I have been with has ever made any kind of kinky or bizarre request. The kiniest was one girl wanted to be tied up, but in this day and age, that’s barely kinky anymore. 
I never did, but not because I didn’;t want to, but because my bed had no place to tie anyone to. Well, I guess maybe you can count the (same) girl who kept asking for a threesome with me and one of a couple other guys she thought were attractive, but I could never tell how serious she was, since she would ask in a joking manner. But my guess is that had I actually said yes, then she would have actually gone through with it, so I guess we can count that.
Don’t stick your tongue out at me unless you’re prepared to use it, young lady.
Hey bouv, that’s what neckties and mattress handles are for.
Mattresses have handles? Huh. Learn something new everyday.
How did you not know mattresses have handles? 
Have you never installed or flipped a queen or king size mattress?
My queen sized matress doesn’t have handles (it’s about 5 years old).
One guy wanted to pee on me. I declined.
Another guy wanted me to wear stockings and let him f*** my feet. I let him, but it was hard not to laugh.
Um, these are so frequent that I’ve got 'em filed under “plain vanilla.”
(Then again, I’m such a sissy that compliance has never been too painful or dangerous – so that might not count.)
I’ve never been asked for anything kinky. I just don’t inspire that kind of Luv.
Check the garage for signs of home made tumbrels and guillotines before you think it over any further 
Does one use butter or oil for that?..
I’m thinkin’ that it’s hot scalded in Kosher sea salt…
Wouldn’t that be too salty then?..
My former girlfriend from many years ago repeatedly expressed a desire to be a spectator while I did it with another guy.
It never happened for many reasons, not the least of which was I wasn’t interested in guys then (or now, for that matter). The fact that it was the middle of 1980s AIDS hysteria was further disincentive.
Actually, no. I’ve only ever had a twin sized mattress.
Never seen a mattress with handles. I’ve had to make do with bedposts and such.
[hijack mode=mild]Y’know, I never knew that?[/hijack]
What did you never know?
An ex of mine wanted the same thing- to watch me with another guy.
It never happened, partly because I’m just not into guys (even though I’m comfortable with my sexuality), and partly because she wasn’t prepared to offer anything in return. ie, if I had decided to go ahead and broaden my horizons a bit on that occaison, all she wanted to do was watch. Not join in, not bring a (female) friend over… just sit there and watch me with another guy. It just didn’t feel right, so I said no.
Mostly, I’m the one making the kinky or interesting requests, as it turns out these days…