Ryuusei Tenshi Primaveil

Japanese Title: 流聖天使プリマヴェール

Airdate: February 24, 2006

Plot
Our heroines are Primaveil Tsukuyo (pink hair) and Primaveil Korona (blue hair), magic warriors from… somewhere, tasked with defending the Earth from an invasion of rapey humanoid aliens. During a battle, Tsukuyo (a virgin) gets captured and imprisoned in the aliens’ flying saucer, and the rest of the anime is her getting raped into submission by alien commander Prince Garland and his minions. At the very end, Korona teleports Tsukuyo a weapon, and she graphically cuts the rapists to ribbons.