Laugh (Baby 2)
Natasha had left him with strict instructions to stay close by the nursery. "I'll be back in an hour," she insisted.
"Do you really have to go?" Loki asked. It was the first time he had been left alone with the baby. It wasn't that he was nervous, it was just that the child existed as a sort of amorphous concept in his mind. He and Natasha had one, it existed, and sometimes he poked at it with one finger. Plus he got to show it off in the Palace.
"You'll be fine." She gave him a deep kiss and ran down the stairs.
Loki wandered into the nursery. The little girl lay in her crib, and with a start he saw her eyes were fixed on him with an unblinking stare. "Ah. Um. Hello." He didn't know what else to say.
There was no response, naturally, and Loki fidgeted. Suddenly an hour seemed like an eternity, even to a demigod with a 5000 year lifespan.
He felt desperate; probably it would be bad if he just stalked out of the room. Still, the child's unnerving stare terrified him more than the thought of a Chitauri invasion. As a last resort, feeling very silly, he picked up a pink stuffed kitten from the crib and waggled it. The baby watched, and out of nowhere a pair of dimples appeared around her mouth. Suddenly she broke into a long peal of laughter.
Loki was delighted. "Is this funny? What if I do this?" He made the kitten float float in the air, pretended to try and catch it.
That made her laugh even harder, and he began to chuckle himself.
By the time Natasha returned, Loki and the baby were passed out on their massive bed: the tiny girl lay on his chest, and his long fingers cradled the little head under his neck.
Quietly she lay on the bed next to them, careful not to disturb their slumber.
NOTE - I'll never forget the first time my kid belly-laughed, so I wanted to give Loki a moment like that.