Jack was just laughing with their antics , shaking his head a bit with disbelief with how adorable they could be. Why couldn't he be that cute when he flitted about a room? Maybe he was. He'd have to ask Jules.
"Oh, let the little ones have whatever they want, darling. I'm not hungry," Jack shook his head a bit, "If they want something to eat, I can spare you for a bit so they might be nourished." He didn't eat much while in hospital because the food was not something he enjoyed, for starters, and the general unease of the place made his stomach less insistant that he do eat.