Hey. Why don't you pretend to be thirsty with me?

嘿。你为什么不和我假装口渴呢？

So the guest is presumed to be thirsty and in need of some drink after the trip.

这么说来，我们就得假设客人赶路后，口渴了，需要喝点什么。

" Well, I guess you're going to be thirsty then, " said Jun, shrugging. Wow!

“好吧，我猜你那时会渴的， ” 君耸耸肩说道。 哇！