being naughty is in jester's nature, and she can't help but go in for a prank when she sees an opening for one. cut to the person she's pranking (fjord, caleb, beau, essek, etc, all of them - anyone really) catching her red-handed and giving her a playful smack on the backside as punishment

cut to both of them enjoying it more than they probably should, and finding any excuse to do it again and again. jester doing more naughty things and intentionally getting caught, and the person she's messing with more than happy to bend her over and punish her

+ it eventually escalates to both of them getting off while doing it and/or outright sex
+ perfectly fine with it being something of an under-negotiated kink