The context of the following conversation is Kai would play with Ash everyday when they got home from work, no matter how tired they were.:
Kai says Ash is so much fun to play with, sometimes it's gaming, other times it's football and occasionally we have a pillow fight!.
The friend responds Honestly don't know where you get the energy from..
Kai responds I'll usually get a coffee or two and I'm ready to go!.
The friend responds Can I join you guys next time?.