I was gonna say reading this (before it all got resolved) that Rikka was definitely trying to make Makoto jealous. But they wrapped that all up by pretty much saying she did it on purpose. The only thing I don't wholly understand is why Rikka sighed after they had sex the first time. Was it because she thought Makoto didn't care enough for her, or something? The jealousy set-up was clearly to get Makoto to act more dominant and... Show her true(er?) feelings for her or something? Not sure.
But very happy and cute ending. And all the sex scenes were great. Y'all at Yuri-ism always put out great releases. Thank you!