You mean a threesome? :D

Thanks for the translation

I am having second guesses if one of the tags should be Jun, I just can't come to a firm decision.

lol, copy+paste the tags from pixiv?

akbjker said:
lol, copy+paste the tags from pixiv?

タグ　*けいおん! 　*中野梓 　*平沢憂 　*憂梓 　*百合

Well that was helpful, only Azusa and Ui's names are there @_@

Inputting my real birth date on Pixiv was not one of my better ideas, now it won't let me change it or see 18+ >_<

What about the artist's comments?

計画通り

寝間着のあずにゃんが「まだ眠くないよう」だと…。これが全て憂の計算だとしたら。学校でベソかいて見せたのも、二人が泊まりに来るように仕向けたのも、純の食べ物に睡眠薬を仕込んだのも、すべて憂の作戦だとしたら…！うっかり「いいなあ」と漏らしてしまう梓に「どこか行きたい所，ある？」と畳み掛け「動物園」と答えを引き出しておいて「私も行きたい！」であずにゃんメロメロですよ。憂の可愛い子猫一丁上がりですよ。そう考えたら憂ちゃんの甘えさせテクニックハンパない。ピロートークの甘い罠。

As I have realized Pixiv is like deviantart so the tags are usually less than helpful

She's Jun, this took place when Jun and Azusa came over to Ui's house when Yui was on her field trip.