I'm thinking thats Linda as a blonde. Same nose.
The first whore here's definitely Kristal Summers.
The name's even included on the cover.
After view several photos of Kristal Summers; I don't think it her! She has a super big chest and her nose and face are too wide compare to the unknown actress. Kristal body shape is different too. I saw some of her 1998 snap shots on boxes and her body type is not right. On top of that; she only 5',6" tall. I think the unknown is 5' 8-10" tall.
Thanks for helping out!