
I don't think that would happen. This is a very balanced threesome story with comedy, so they won't make a deal out of something like that. Also maybe you forgot but ginga and kou already had physical relationship way before they got together with yuu, also after that. It was indicated in both prequel and sequel that two seme have physical relationship but it is just yet to display in front of us. Also it's said ginga and kou having frequent sex was one of the possible reason they both were able to become mate with yuu. So yea~ it's just we viewers didn't saw ginga being the bottom but he already is for kou and that's how their relationship is.

Plus ive seen same route where the other two seme ends up falling hard to each other that the uke seems irrelevant or become nuisance at the end. I wanted this to be like this. Two seme head over hills to uke. And that is very rare in threesome story. I love that uke love this two equally. Thats all we need.
Am I the only one who doesnt want Ginga to be bottom by kou. If he did theres a new door that will open. I just enjoy the love they had to Yuzu. What if Ginga crave for Kou :( i have read same plot as that and It doesnt go well . i dont like it. I just like the way it is. No drama. Just pure perv , possessiveness that mutual share by these two Alpha.