[Tristan's done a good job of sheltering him from reality. He doesn't know that it's odd for his big brother to kiss him, or that Tris's "eccentricity" in that department is a frequent topic of gossip. It doesn't occur to him to be scandalized, or indeed to do anything but throw his arms around Tristan's neck and wriggle his way into his lap. He's just being shown affection, and as always he soaks that up like a sponge.]

We should spend the time together, of course.