Poor Mallory. BA Sam would want to give her a huge hug. It would sadden him so much to remember that the Walt in his world will never be able to have her back. He’d probably get a kick out of Dean’s nest. XD Dean gave up the dollhouse bed for Sam and never looked back, and now he just burrows down under all the fabric and blankets he can find.
The BLs might be jealous of Sam’s setup… he’s got all the awesome stuff.
Jacob would be entertained when the Sams discover they’re just as good at climbing and the contests slowly escalate to longer and more dangerous areas until both Deans put their foot down and say no more… and get ignored.
And then BA Dean becomes the next obstacle.