So cute! Love Dexter when he goes in close to the camera and Peppermint doesn't skip a beat and goes for him, lol.
When I brought home my second, who loves to wrestle, my older boy would go on his back like Dexter and let Teddy jump all over him. I thought maybe that meant Max was going to be the submissive one until someone explained to me that it simply meant Max didn't feel threatened by the new little guy.
Max is top dog, but he still rolls on his back for Teddy to "attack" him. When I ask them what they are doing, they will stop for a second and look at me like, "What???" and then go right back at it.