Hitomi - My Stepsister/YMMV

coming up with crueler and crueler ways to sexually abuse his stepsister. more light hearted example. Takahiro when Hitomi comes home earlier than expected, then gets upset about Takahiro possibly preferring Hitomi. Granted, Yoko's a little unhinged, but she only had herself to blame for that one.
 * Crosses the Line Twice -- Hitomi's route pretty much consists of Takahiro
 * Yuki's Loveable Sex Maniac antics definitely fall into this too, in a
 * High Octane Nightmare Fuel -- Holy shit, Yoko's Yandere end.
 * What an Idiot! -- Yoko forces Hitomi into a threesome with her and
 * The Woobie -- Hitomi