Following their agreement to be a "couple until graduation," Kirino returns her ring to Kyousuke, and they ostensibly return to being normal siblings.
Watch a review and discussion of the controversial finale of Oreimo Season 2 here: Oreimo Season 2 Episode 16 Review -- The Finale YouTube• Aug 18, 2013 OreImo 2 Episode 16
The finale centers on the graduation of both from high school and Kirino Kousaka from middle school. Key events include: Following their agreement to be a "couple until