Responses
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http://www.mangago.zone/read-manga/happy_shitty_life/
http://www.mangago.zone/read-manga/neko_samurai/
http://www.mangago.zone/read-manga/kohitsuji_hokaku_keikaku/
There are some others but these three are the only titles I can remember right now.
I've seen top vs top battles where each one wants to top the other, and this is a mild, but nonetheless interesting, version of the other side: bottom vs bottom, apparently. Someone already won, but it still makes me curious - will they continue this relationship? Or will they go their separate ways in frustration? I do hope it's the former, I want to see how everything will play out.