Greg didn't think eating a few sandwiches would be enough to fatten someone up (plus pansy's hunger was his priority, rather than her figure), but he had no problem with helping himself with a sandwich or two.
His face lighted up at the mentioning of flying. "'Course we can go flyin'!" he said. "Fresh air will be good." Maybe they could convince Gertie to join them. She could sit somewhere in the shade with a book.