This is an alternative universe of the Steven Universe episode "Can't Go Back" in which Steven accidentally flies out of the moon base, again, but this time it's with his beach summer fun buddy Lapis. Throughout this story Lapis and Steven are talking to each other, but it's within Aqua Quartz's subconscious. It's similar to when Steven communicated with Lapis in his dreams in the episode "Chille Tid", except of course Steven is awake during this.