In the case of Ashley and Alissa, Alissa is a satellite to Ashley, as she never appears without her. It doesn't have to be mutual.

Pulled:

• Adult Child

Adult Child has been renamed to One Of The Kids. In order for this to be an example of the trope, the character's childishness has to be from or demonstrated by interacting with children. This example can be added back with context relevant to the trope if it fits.

If we can model this after other page groups, it might help.