Being a middle aged man who is far hornier than my wife, I always find myself fantasizing about younger women. The very common

early 20s angel-in-the-light, slut-in-the-night virgin who wants me to teach her everything sexually, then clean my house and make me a gourmet dinner after. Haha.
And then of course, I put the 20 year old version of my wife in the fantasy as a threesome. That staves off any guilt. Thanks goodness for fantasies!