you say "jon loves being picked up by martin", i raise you, Martin defuses little petty things by just picking up Jon and removing him from situations. Martin says "HEY it was my turn to do the dishes! get out of here!" and when Jon insists, Martin just picks him up and plops him on the couch and then goes back to the kitchen.
I SEE THAT AND I RAISE YOU:
Martin picking Jon up to diffuse BIG situations
Jon: terrified and magically unable to leave
Martin: Okay that’s enough *picks up still frozen Jon and walks off*
Jonah, who’s Jon’s height: Wait no, you can’t do that!!!
Alternatively: Jon fights back because he WILL do the dishes Martin, really, let me do nice things for you once in a while (It’s been every night this week Jon!! It’s fine!)
Martin: *plops Jon down on the couch*
Jon: *climbs over the couch and makes a flying leap, landing on Martin’s back*
Martin: !!!! Jon I will body slam you into the couch
Martin, lying down on the couch on top of Jon: No, it’s my turn
Jon, positively purring: Cuddle with me first?
Martin, suspecting nothing: Fine. Five minutes *yawns*
Jon, grin splitting across his face: *starts playing with Martin’s hair ever so gently*
Jon: Ready for bed sweetheart?
Martin, snapping fully awake: Did you--
Jon, giggling: I finished the dishes :)