It's getting on past Kaylee's bedtime -- well after most of the rest of the crew's in bed. She's in the kitchen, damp-haired and in pajamas: long night on the ship in the garage equals a long hot shower before coming home and collapsing next to Simon for a few hours.
But. Tea first.
She stands in front of the range, leaning back against the counter opposite, and watches water boil. It's about as enthralling as it sounds.