Her movie works are Side By Side, A Royal Night Out, Equals, Detour, Wilding, Ashes in the Snow, King of Staten Island.
Isobel is pretty close to all of them.
But if sex were as miserable as presented here, the human race would have died out long before 1976.
She and an unknown man filmed their action and all I can say is that this horny girl enjoys every second of it! At least, Powley was an adult when the film was being made.