It's an odd sensation that's for sure, especially for Marik when it comes to someone touching his back, but he's far too excited to let it bother him now outside of the slightest hint of him instinctively tensing up at first. A part of him also wonders... is this what it's like to have a true friend? He'd always thought the way Yugi and his gang interacted was childish, weak. But here he is, doing the exact same thing with Kaiba. He's actively invested in seeing the guy do well in this world, see him succeed and become a super-power. Obviously there's perks in it for him but the majority of what he feels is to see good things happen to his friend. Chen beams happily upon being patted and Oba is far too excited being spun around and starts vibrating. Don't worry. He's okay.

Marik follows next to Kaiba as they head to the Poké Center, still grinning widely, even laughing at the static that effects the other teen's hair.

"You were really in synch with your pokémon. If all of your battles are going to be this good I might never leave your side. That even got my adrenaline pumping!"