The clip has been taken from the movie named The Entity which was released in 1981.
We also got a scene of her boobs pressing and sucking and she started moaning also.
Barbara Hershey is seen in the clamp teeing her hairs with clamp while sitting in front of a mirror.
In the scene u can see Barbara Hershey pouring the beer at her tits and after that she gets off her bra! She also recreated sex scenes from a movie she starred in with David Carradine, as part of a nude pictorial the couple did together for Playboy.
She was also featured in Woody Allen's critically acclaimed Hannah and Her Sisters 1986 , for which she was nominated for the British Academy Award for Best Supporting Actress and Garry Marshall's melodrama Beaches 1988 , and she earned a second British Academy Award nomination for Darren Aronofsky's Black Swan 2010.
She experimented with a change in stage name that she later regretted.
In the next scene we got to see her big boobs, someone who was not visible was pressing her boobs and sucking it too.