Amanda Bearse
Near the end she's wearing a white dress, turns sideways and you see her perky silloutte through the dress. Then she walks forward and her breasts appear larger with obvious pokies, my guess is she was wearing fake nips and padded bra.
https://cdn1.aznude.com/amandabearse/frightnight/bearse-fright-s-06.jpg
Well here is a shot of her in just a bra so yeah, definitely some sort of enhancement going on.
https://rommerreviewsdotcom.files.wordpress.com/2014/04/amity-05-2.png