She might be beginning to realize that her threshold for that stuff is very, very skewed compared to most people. Only a tiny bit so far, but still.

"So this is your first time?" Phrasing, Ritsuka. "Though even if you don't go swimming, there's plenty to do on the beach too."

Well, the volleyball might be out of the question with that leg, but there's other stuff besides just sitting around pretending to read.