Shun is sharing his tangerine and ends up going to Kaname's house, but Chizuru, Yuki and Yuta end up going too and all 5 stay for dinner. While it was expected they would leave after dinner, instead at Chizuru's suggestion, it becomes their first 5 person sleepover.
Is this what you meant by "warmth"?
¿Será esto a lo que te
refieres con cosas calientes?
¿Será esto a lo que te
refieres con cosas calientes?
É isso o que você quis
 dizer com "calor"?