One game of "7-Up" sees Marek cuddled up to Greg for the whole duration, for reasons known only to... it's not so clear who, really.
"Come to Dinner" sees Marek saddled with a quirk he's not very good at (Robin Hood), and when it's his turn, he tries to cop out after a failed stunt and one line, but Greg Davies (whose style is just 'pantomime' but instead goes into Depraved Kids' Show Host mode) literally drags him back in.
Greg: (sitting on Marek) "Oh, I've slipped on 'Robin Hood'! I might stay here for a while now!" Hugh: "This is so going to end up on the DVD extras..." Justin: "Oh, it's behind you! Your career!"