
Oh boy, you, my friend started a fire! Let me help spread them flame...
I think Yashiro actually showed a bit of possessiveness for Doumeki at that time. Yashiro already knows Kageyama's touch, what Yashiro wants to know about Kageyama is his sex:
http://www.mangago.zone/read-manga/saezuru_tori_wa_habatakanai/mf/v01/c001/9/
When Kageyama touched Doumeki's cheek, it was not endearing nor sexual. The look on Yashiro's face was not towards Kageyama but towards Doumeki. Besides, Yashiro wouldn't get turned on by his touch, but more on others emotions (anger,sadness, ex: when Kageyama's father passed away) and danger/ violence. He was only thinking about Doumeki, how he himself was in danger, how they were both almost shot ( Nanahara too).So it's safe to say it was all for Doumeki.
Last one is tough cuz it could be a bit of both. Doumeki is fully aware that Kageyama is the one that Yashiro loves. So I'm sure Doumeki moved because 1) he wouldn't want to do that in front of Kageyama, not because Yashiro would be embarrassed (he could careless), but because he thinks that it's wrong of him to do it in front of the one he loves:
http://www.mangago.zone/read-manga/saezuru_tori_wa_habatakanai/mf/v01/c013/15/
I'm sure Doumeki wants to be respectful (even though he is getting carried away in the moment). 2) He is possessive. Doumeki is not hiding this fact. Doumkei loses a bit of control at that moment and so does Yashiro with all that excitement. That moment is theirs, and theirs alone.

Thank you and I like your opinion (๑•ㅂ•)و✧

(=・ω・=) It's ok and i agree with everthing you wrote (≧∀≦)
but If you don't mind, I have another question do you think that Yashiro still loves kageyama? ╥﹏╥

⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄ and Sorry for my English (〜 ̄△ ̄)〜

Don't apaologize for your English! I like how this manga brings us all together! Haha!
That is a tough question....
Yashiro will always love Kageyama but I do believe that is slowly starting to change. As a reader, I really want Yashiro to have closure ( I want closure to come to Yashiro, not have Yashiro looking for closure, he's already given up a lot ), I'm not saying Yashiro is falling out of love but more like he needs to finally be acknowledged by Kageyama.

Also, I think the reason why he still holds on to that contact case is because you just don't forget a love as strong as that. Yashiro is amazing, after doing what he did for Kageyama (including setting him up with another man), it's very sad that Kageyama still pities him. But that's why I'm rooting for Doumeki, even after knowing all this he still chooses to stay by his side and not run away. Boss is beautiful and Doumeki is the love that Yashiro deserves. Sorry for talking away! Also your English is fine! (^_^)

Well, perhaps you misread what I meant but it is defiantly on the same page as what you are saying. I agree, at this point, I don't think Kageyama deserves anything from Yashiro, and by acknowledgement I don't mean a thank you or even a pity fuck. I think I would like to see him get punched in the face ( my personal opinion ). Haha!

I just love Yoneda Kou's mangas. I mean, one single picture can be analysed in so many ways, and everyone wants to know how to interpret it correctly :)
I agree with the previous posts about how Yashiro is in love with Doumeki (or Blowmeki) now, since he was looking at Doumeki when Kageyama touched him, not at Kageyama. Also he can have such strong reactions from just one touch from Doumeki, while Kageyama had to keep touching his scars a lot, before he would get slightly aroused. Furthermore, even Yashiro himself doesn't know why he reacts that way, so I'm interpreting his love for Doumeki as stronger and different than any other..
I also think that Yashiro probably needs both of them in his life due to all of the stuff that he has been through.. Kageyama is the only who has ever been there for him, since he was a child, so he is kind of his best friend/brother who makes his life stable, while Doumeki is turning into his lover/family and bringing stability into the future, since Kageyama has less time for him now..
Guys What do you think about this picture? http://commandermardukas.tumblr.com/image/145357208179