It's not the fact that she's bound and tickled.
It's not the fact that Jessica is bound and tickled.
It's the fact that Jessica is just barely out of reach and there's nothing she can do about it except watch her laugh, as well as laugh herself.

This is a commission I nabbed from https://www.deviantart.com/gagpal3 a long time ago when they were open! Super happy with this, his rendition of my characters is fantastic!