It's nice that Senpai's relationship with the friends is more based on playful banter rather than Senpai running away at the sight of Nagatoro's friends. We also now have a name for the tall redhead, Gamo. 
I like that Nagatoro is "defending" Senpai by calling him a pervert when her friends say he's a herbivore. For a moment on page 14, Nagatoro seemed genuinely worried that Senpai was actually a herbivore, probably because if Senpai truly was one, it would mean that he wouldn't have any interest in her. That's cute.
Props to Senpai for bringing that ero-manga in the room so Nagatoro can win her bet against Gamo. It shows that in spite of the back and forth teasing between the two, Senpai does care about Nagatoro enough to sacrifice his dignity in order to make her happy.
Good chapter overall.