Cheesy 80s Sci Fi Rom-Com

Two alien species, one male and one female, ariive on Earth looking for true love. The female takes a beautiful, slutty human guise and the male takes shrimpy, nerdy human guise. They woo and court each other in the Earhtling fashion (as well as they can, anyway) not realizing they are both aliens from separate planets. Meanwhile, three "modern" fashion victim cougar witches sense the coming of the two star people, and work to steal their potential true love energy to fuel their power and youth.