It was New Years Eve in the bunker. Sam and Dean went and splurged on fireworks for Jack. Jack hasn't gotten to experience fireworks, and everyone thought it'd be fun for them. Castiel even went to go pick up pizza and beer for everyone.

You and Jack were sat down on a picnic blanket, beers in hand. Sam and Dean were setting the fireworks up, and Castiel was making sure everyone was happy. Jack looked excited before they turned to you. They scooted closer to you, smiling warmly.