With the Kaiki situation having been resolved, Koyomi's life is seemingly on the path back to normalcy. The episode begins with Karenentering Koyomi's room, dressed extra cute in hopes that he'll agree to her wish of being introduced to Suruga. Koyomi is worried that Suruga's extreme sexual nature will rub off on Karen and decides to make her pass a test in order to have her wish granted: she must let him brush her teeth for five minutes. She agrees but quickly discovers that it creates an incredibly arousing sensation, which Koyomi knew would happen and assumed would force her to quit before the time limit elapsed. The plan backfires, however, when Karen is completely ok with being sexually stimulated by her brother and Koyomi quickly finds himself entranced by the sound of his sister moaning in passion and the sudden realization of how attractive she actually is. Things begin to heat up and eventually lead to Karen giving him the OK to move on to heavy petting. Before things go past the point of no return, Tsukihi enters the room, causing a bit of embarrassment and forces the two apart. Koyomi and Karen are able to convince her that nothing out of the ordinary was going on and Tsukihi heads off to the convenience store, allowing Karen and Koyomi to pick up where they left off, except this time it will be Koyomi who has his teeth brushed.
|Koyomi Araragi ( x ) ( x ) ( x )||
|Karen Araragi ( x ) ( x ) ( x )||
|Tsukihi Araragi ( x ) ( x ) ( x )||
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