[Baseball Rock-Paper-Scissors] Two pairs of siblings, one a beautiful sister and the other a virgin brother, try to act tough by saying things like, "There's no way I'd get turned on by my family's naked bodies," but they quickly take back what they said and get turned on by each other, crossing a line they shouldn't have crossed. Sister: Yura (27) Brother: Takeshi (23) / Sister: Mami (26) Brother: ***** (22)