I'm the only one, who think they really love each ohter even in the show? Ayano and Chinatsu are like crushes, but Yui and Kyouko have a deep bond and many moments without jokes togehter.
From what I remember in the show Kyouko practically lived in Yui's house she went there so much, this sort of relationship forming once they start getting interested in lewd things makes a lot of sense. It definitely seems like a lot more than just friends with benefits when they're turning down other people and kissing so passionately when they do it, but maybe that's just me.
