Since Alexandra is just hitting her stride in the talking department (namely about shoes, coats and food, God bless her), and Charlie is stuck on more, uh-oh, mama and dada, I took it upon myself to imagine the conversation that took place as these two were perched on the glider.
A: Well, we made it. C: Yeah. A: Do you know how to pump? C: No. My feet don't reach. A: Can you help move us at all? C: Again. My feet don't reach. A: So, we're just supposed to sit here? C: I guess so. A: Well, hell. Lotta good this did us.