The narrator tells us that if you only squeeze him once in 10 seconds, you can "grope it" . He's talking about seeing someone unexpectedly, without thinking about it. The narrator says that seeing someone who's not your friend turns into "full on sex" , and that's just how it is in this story. He also says that the slaps are so good that he can't even stop. He says that he'd notice if someone were looking at him and looking at the thud of the slap , which is like looking at your brother's "jealousy." The narrator goes on to say that the thud sounds like it's coming from a ship, and he's sure that it is coming from the "senpai" and "mayu" of the ship, because it seems like they're on the same ship as him. He then says that if he squeezes just a little bit, it might go away.