Getting Bad

I'm a happy mwm and my younger wife is great, no complaints except with the changes her sex drive that was never as sharp as mine has become pretty much zip. Over the many years we been married I've had a handful of others and I think some she knew about and some not. I actually think that in the last 10 or 15 years she was just as happy I was getting the edge off someplace else. I always been discrete and mindful to never embarrass her or let others know I was getting some on the sly.
So the strangest thing has happened lately and it's this thing that started as a curiosity thanks to watching porn. Then the curiosity turned to a craving that is getting real bad.
I'm afraid that this could get out of hand and I might act on it.
What I been thinking about and obsessing about is to find a very petite and super femme tranny. I love assfucking a woman and if I'm gonna step out I'm gonna get me some tail.
I figure a tranny must have the best little shithole for fucking and there's less drama involved.
The worst part is what I keep craving. I really want to lie down and have her squat over my face and teabag me so I can suck her musky little nutsack. That would put my nose in her crack and the tantalizing scent of her pu$$y ass would have me rimming her in a minute. All I can think of is a line in a book that said I tasted sweat and shit. It's so fucking gross but I want to dig my tongue in her and make her beg for me to suck that tiny dick.
I imagine taking her entire dick in my mouth and swirling my tongue all around, stroking her with two fingers and swallow her tiny pecker all the way. I imagine her moaning and begging me "don't stop papi" until she rewards me with hot creamy cums in my mouth.
Then I'd be hard again and fuck the living shit out of her dirty fucking ass.