Caitlyn laughs at the interaction between the two of them. "I can see why you liked the company Rose. These two are a riot. And with their chemistry it's hard to see why they shouldn't at least seal their relationship with a kiss." She said still laughing. She found this entire thing funny, so stood up and placed a kiss onto Jack's cheek. "Since Rose's heart belongs to the Doctor, I bring myself to the owing, and the debt is paid." She said an amused smile still on her lips. "Though it really would have been interesting to see just how long the two of you can bicker like an old married couple."
"Caitlyn you got it all wrong. The Doctor is the oldest in that relationship. Jack has only just gotten into his immortality." Rose teases.
"Eww. So it's all forbidden and what not. Like student and teacher." Caitlyn made a face the cousins laughing at the mental image.