S4E69: it is mentioned that an inmate has committed rape. S6E6: the chimera ants pure evil intentions and love of the hunt for humans is demonstrated with one of the monsters killing a female character and raping her corpse. The act is only showed from behind and there is virtually no detail other than slight movement. Regardless, this level of violence is never shown to be these intense through the whole series, and can be extremely shocking or triggering for someone who cannot anticipate it coming. Worthy of note: a character is a masochist and gets aroused during fights. The twelve year old protagonist also goes on a date with an adult woman, though nothing sexual is implied. In one episode, an adult man is seen looking at two young boys lustfully (played for laughs).