La Blue Girl: Revenge of the Shikima Realm (1995)

Sinopsis

Three complete stories of Ninja Sexcraft! The live action version of the anime hit. Miko has been training all her life for the inevitable day when the sex-starved Shikima Demons would invade to subjugate the women of Earth with their lascivious tentacles. Now the barriers are breaking down and the people of Earth are in peril. The demons won't stop until they have insinuated themselves into every orifice available. Will the Shikima demons make slaves of all of Miko's friends? How can Miko possibly defend against the wrath of an entire dimension?