Musing on My Secret Interest in Little Space

I'm a 42-year-old married man who's been happily settled for decades. Recently, I've found myself drawn to the idea of playing little space with my wife. It started as role-play and has slowly grown more real to me. The idea of being cared for like a child is surprisingly soothing but also unsettling. Is this common among adults? Should I explore this further or just leave it as an occasional fantasy?