Anybody ever do reverse age-play? By which I mean, I'm 25 and my wife is 50, but she's my little girl and she calls me Momma.
When we first got together, we were weary of our age difference in wanting to do any kind of age play (we thought you only did the older person as the parental figure), but when she blurted out "Thank you, Momma" one night, it made us both feel warm and happy inside. We don't play with the dynamic all the time, but it's super fun when we do.