If Loki were Superman, in some terrible superhero comic-book analogy to his life, children were his kryptonite. They made him weak and defeatable. But, at the same time, they also made him smile and laugh and play. Dammit he loved kids. Even when they were still palm sized and did nothing more than spit up, shit and sleep. Which meant that people had a habit of handing him babies and children once they learned that fact.
So, as Thor twisted the little boy swung off of him easily like a monkey. Thankfully, Loki's reflexes caught him and in one smooth movement flipped him up and over his shoulder, dangling the boy upside-down by the ankles, down his back. The outburst of giggles confirmed that the boy was more than pleased with this new position. It was a game. Which Loki was more than aware of. He'd had boys, he'd gone through this phase more than once.
And he'd loved every minute of it.
“What did you want to do with them?” He asked over the giggling from down his back. “Take 'em somewhere? Like a park?”