Good, as much as I love Furuhashi, Takeru/Mizuki is OTP.
Furuhashi...hasn't shown interest in Mizuki beyond friendship. At all. In 100+ chapters. It'd feel rushed if they did it now.
Finally. Fujiwara deserves better than... whatever the fuck Takeru is doing about Mizuki's transformation.
Imagine being so weak willed that you start molesting your homie just because he's grown some titties.