同僚の青空と黒田は互いに苦手意識をもっていた。ある日の会食後、終電を逃した黒田をひょんなことから自分のマンションに泊まらせることになる。二人で飲み直すうち仕事の話から下ネタに。ムキになって言い合ううち「そんなに言うなら試してみる！？」と予想外の展開になってしまい…

Colleagues Aozora and Kuroda had a mutual dislike for each other. One day after dinner, Aozora lets Kuroda stay at his apartment after he misses the last train. As the two of them start drinking again, they start talking about work, and then they start talking about the bottom half of the house. As they get into a heated argument, he says, “If you insist so much, I’ll give it a try! and things take an unexpected turn…