According to my late father's will, I have to choose one of Kokomi-chan, with her charming devilish smile, or Kokomi-chan, who is so cute I want to hug her, as my little sister... Both of them are very proactive, seducing me with their boobs between them, giving me double blowjobs with their tongues entwined, and testing the compatibility between their pussies. Which one should I choose as my little sister?