What is this scene from?

Not porn. She is Keri Russell, an American actress.

https://en.wikipedia.org/wiki/Keri_Russell

The OP's gif is from the TV series The Americans, Season 03 Episode 11 (2015)

Proof:

https://www.partycelebs.com/videos/4049/keri-russell-nude-the-americans-s03
e11-2015/?play=true

https://videocelebs.net/keri-russell-nude-the-americans-s03e11-2015.html

https://moviessexscenes.com/videos/1686/keri-russell-the-americans-s03e11-2
015/?play=true

https://ita.xhamster.com/videos/keri-russell-the-americans-s03e11-4429450

Not porn. She is Keri Russell, an American actress.

https://en.wikipedia.org/wiki/Keri_Russell

The OP's gif is from the TV series The Americans, Season 03 Episode 11 (2015)

Proof:

https://www.partycelebs.com/videos/4049/keri-russell-nude-the-americans-s03
e11-2015/?play=true

https://videocelebs.net/keri-russell-nude-the-americans-s03e11-2015.html

https://moviessexscenes.com/videos/1686/keri-russell-the-americans-s03e11-2
015/?play=true

https://ita.xhamster.com/videos/keri-russell-the-americans-s03e11-4429450