MangaGamer has released more imouto goodness with Imouto Paradise 3. Per the usual these siblings are very very close and with their parents away things go about how you would expect.
From the PR:
While the events of Imouto Paradise and Imouto Paradise 2 have already proven the Nanases like to keep it in the family, the same holds true for the cousins of the original 6!
When Nanase parents away, the siblings will play in bed! Will you fall for Sakura, the deredere sister handling the housework; Rika, the diligent tsundere with great grades; Hinata, the adorable clutz loved by all; Hiharu, the bright, athletic gamer; or Zakuro, the calm and collected author of many erotica? Whichever sister you choose, you’re in a for a hot summer with these sexy sisters trying to get intimate! Maybe you won’t have to settle for just one, either!
You snag the game up now on MangaGamer.com for $44.95, but there is a launch discount of 10%.