Normally I'll eat her pussy and rub her clit with my finger until she cums. On nights when she's really horny, I'll get a lip lock on her clit and either bite it real hard or suck it in and out of my mouth real hard. Her clit gets so swollen, red, and large sometimes I think it will burst. She cums multiple times on these nights. Her clit is so swollen and sensitive she can hardly stand the intensity but has to have more until she collapses.

That's exactly my ex-girlfriend! She made it very clear that her ass was exit only. But then one night after a shower I was fingering her, and she was dripping wet with her own juices. So I slowly started moving my finger against her butthole and eventually eased it in. No objections. Only moaning. In the end I had two fingers all the way in her ass and she had a massive orgasm, and even uttred something like "well, that was new". Afterwards she snapped right back to "no anal for me" mode, and even gave me a long talk about how she thinks it is not a thing to do, even though "all boys want to do it". But she let me repeat the same procedure again, jus as long as I didn't ask for it. It was like if it was not mentioned, it did not happen. :D

It's a long story, but fucked her in the ass eventually.

This is another of my wife's little kinks.
With trusted friends we have made, she likes them to wank their cock on her pussy lips, clit and wank all over her pussy, but not enter her.

Any others have this kink?

I don't know if this is a "kink".........
But the wife can be a squirter.
Knowing this, in our earlier days when we get going in bed, I'd grab a towel to put it under us so we don't mess up the bed.
.
This freaks her out for some reason, saying I've "spoiled the mood". WTF? I'm thinking if we don't use a towel, we'll "spoil the bed"!!!
......... Might have something to do with a need for spontaneity. That is, no planning allowed... ???
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My wife always cums harder with a finger, butt plug or small vibe in her ass.

Your wife's little kinks
 

Yea, when my wife is on top of me riding my cock she likes her arse fingered as she is cuming, it really blows her mind, and she moans really loudly.

One thing I just found out...
 

She REALLY likes having her toes sucked. She didn't even realize it, I was massaging her feet in the tub, she was obviously getting aroused( moaning softly, rocking her hips forward and back. In my lap.) I had both my thumbs pressing into the arch of her dainty foot, and I tentatively licked her big toe...she gasped and moaned louder. I took her first two toes into my mouth, and she could only take a few minutes before she mounted my cock without a word...

That reminds me of my wife. A sure way of giving her powerful pussy contractions is to softly bite her ear lobes. Especially if she is riding me, I only need to give her a few soft bites and I can feel her pussy pulsating around my cock.

I like to have my Tits tied up while I suck my Sweeties cock and use the big vibrator on my clit. Sometimes he adds some clamps or clothes pins to my nipples just as I am about to orgasm.

Nap of her neck or earlobe. Do either and she parts like the red sea and you're in for a wet ride..