I dunno guys. You all scream it's not yuri anymore, but just cuz Kobayashi got a temporary dick didn't mean she all of a sudden identified as male. Gender identity is a thing....In my opinion this made it more "yuri" since I saw it as Kobayashi realizing her feelings more, but eh I won't think too much more into it.
And about Tooru wanting to jump Kobayashi's bone after finding out she had a dick? Hell if that happened to my gf, I'd do the same. New thing to play with! It's already established that Tooru likes Kobayashi for Kobayashi and not for her gender. I don't see it as Tooru all of a sudden only wanting to have sex after seeing the dick. She's been trying to jump Kobayashi's bones from the beginning.
Can you please stop being reasonable? This is a serious ex-yuri manga after all! The implications are very obvious, Tooru is 100% hetero and there is no way the entire penis thing was just done for laughs! Wake up people! The end is near!