There were no cast credits on the copy viewed. Second Skin may have been a title created by Your Choice. It does not appear on screen.
Other males - Frank Hoppman, Boris Bonkwitz, non-sex, plays the barman.
XNK6151 is named as Sabine on iafd.
One of the females could be British as one of the credits is Kirsten Casting London, but this is probably Isabelle [2] who worked in Britain for a while.