1) we talking about Nao and her kinks
Nao has achieved a new kink: narcissism! Or is it egophilia?
2) we talking about mihoshi beiing a tease and ayano a hopeless lesbian
In other words: this mini is just same old, same old.
I...I don't get the last one
Neither do I. My tentative guess is that Mask had a breathtaking idea for an amazing doujin—because that's the only thing that ever makes her excited and flustered like that.
My one question would be what it is about those words that makes them so stimulating. "Siamese Cat" + "spoiled" + "owned" don't do anything for me, but maybe in Japanese they sound incredibly pervy?