Demon Sex(2005)

Overview:

Scientists on Earth experiment with advanced DNA from an ancient alien skull, hoping to crack its genetic code for the good of humankind. But aliens want to steal the code to prevent their species from going extinct, so they enlist human women to obtain the formula through seduction -- or the use of deadly force. Brinke Stevens, Vesper Almasy and Tuesday Coren star in this erotic horror tale.