Oreimo
Episode 4
S1 E4:
One day, Kirino's non-otaku, "public" friends -- Aragaki Ayase and Kurusu Nanako -- come over to visit. Kyousuke is harshly told by Kirino to not let her friends see him. Just then, a delivery arrives, but Kirino, duped by the high-end cosmetics box it came in, snatches it away from Kyousuke. In reality, though, the package was sent by Saori Bajeena, and contains things that must never be see...