Youjuu Kyoushitsu Gaiden

妖獣教室外伝

From the radioactive emptiness of space comes the Demon Beast! A hideous alien monster, the Beast shares a psychic link with the beautiful Earth woman, Kayo. Bound by a forbidden past and a horrifying erotic encounter, she is destined to lure the Beast back to a helpless Earth. Her tortured soul cries out across dimensions, calling the Demon Beast to begin his reign of bloodlust, carnage, and terror! (Source: AniDB)