According to Crunchyroll, the company has a limited streaming engagement for 2 weeks to broadcast Oreimo 2's OVA episodes. There will be 3 episodes starting on August 17th at 9pm PST. Aniplex USA will be assisting Crunchyroll with the Oreimo campaign.
The 3 OVA episodes will be limited to a 2-week engagement from the 17th to 31st, with Premium members being able to view all three episodes immediately on the 17th, while free users will be able to view the episodes one week afterwards. In addition, from the 17th to the 31st, OreImo 2 will be open to view for all users except for the following countries: Japan, Korea, China, Taiwan, Thailand, Singapore, France, Switzerland, Belgium, Algeria, Monaco, and Tunisia.
For fans who are new to Oreimo, here is a synopsis
Living in the shadow of his prodigious younger sister, Kyousuke Kousaka had a normal lifestyle until he accidentally finds out that Kirino hides a dark and embarrassing secret. In addition to being smart, pretty, and popular; Kirino Kousaka is also an obsessive consumer of anime and eroge (adult computer games). After being assured that Kyousuke is committed to not mock her and keep this concealed from their parents, she starts to share a bit of her world with him. Kirino faces several problems as she tries to keep appearances and balance her exemplary school life with her hobbies. Her brother then becomes a crucial ally while dealing with all the difficulties that lie ahead.