>>53012110You know, it's like being a cuck, but also the girl's brother. The dynamic would be something like this: Gladion (me) is into his sister (Lillie), but Lillie does not see Gladion (me) as a viable romantic partner. So instead, she dates and has sex with other men, but allows Gladion (me) to watch, and sometimes participate as a cuck. This may also include activities like being forced to crossdress, as shown in the image I originally replied to.
I suppose this is a rather niche kink. It's difficult to find art that really captures this idea.
