This manga is really great at creating unique and believable characters, and of focusing on just a handful makes for a lean plot, but still it's kind of a waste they don't explore the others as much.
I want to enjoy this chapter in a pervy way, but even with a Yotaka bating scene it's too wholesome of a friendship and a bit sad too when I think about it
That almost looked like The Cigarette Kiss from Black Lagoon.
Regardless this manga has iconic cinematography if it ever had it. I can already hear Ami Koshimizu in her Neru or Ryuko Matoi or Mugino voice for Yotaka!