Jessica Schwarz in the sex scene in the clip was seen opening the clothes of her male partner and kissing him with all force that she got.
Lastly, we see Jessica topless, standing and looking out a window as the guy approaches her from behind.
We then see her running naked across an apartment, showing her butt and then her breasts and bush as she turns to face the guy.
She opens her clothes and then also opens the clothes of her male fucking partner.
The clip has been taken from the movie Kammerflimmern which was released in 2004 around a decade ago.