Crave It More Than She Knows

I have a wonderful wife several years younger than I and she is a real dream. Loves to suck cock and always swallows. Loves being used and being her mans toy. I had always been a respectful polite kind of a guy, a gentleman I thought. She taught me what she wanted and I learned to call her filthy names and demand slutty things from her. I really hit the jackpot.
So I do love giving her oral. I been a pussy hound since I was a teenager and sucked my first clit which happened to be attached to my cousin's pussy. She was like 2 years older than me and we used to spend Summers up at our grandparent's cabin on a lake upstate.
Anyway I love eating pussy and do my wife every time I can. I also found out years ago that I love rimming a hot, sweaty, funky female asscrack. Sorry to say my wife's a very clean person and is almost always freshly bathed when she's in the mood.
Only very rarely I've been able to grab her right before she showers and I have been able to lick up and down her crack and even dig my tongue up in her bowels.
I know it's nasty but I am totally addicted to her ass. I am in my happy place with my face buried between her cheeks and my tongue tasting the tangy pink parts.