who is she?

Yes, yes it is Ariel, Piper Fawn or sometimes she's credited as Gabrielle Lupin

Here's a few webpages that includes that photo (and more from that set) all credited to her:

https://xbooru.com/index.php?page=post&s=view&id=278284

http://www.pornbb.org/teens-young-and-attractive-in-hardcore-erotic-perform
ance-t6756958-5865.html

https://fr.todocoleccion.net/collectionnisme-cartes-postales-erotiques-pin-
ups/sexy-gabrielle-lupin-glamour-fashion-photo-postcard-01-rwp-edition-year
-2010~x129117403

(may need to copy/paste last link, doesn't seem like it's all becoming an actual link)

Yes, yes it is Ariel, Piper Fawn or sometimes she's credited as Gabrielle Lupin

Here's a few webpages that includes that photo (and more from that set) all credited to her:

https://xbooru.com/index.php?page=post&s=view&id=278284

http://www.pornbb.org/teens-young-and-attractive-in-hardcore-erotic-perform
ance-t6756958-5865.html

https://fr.todocoleccion.net/collectionnisme-cartes-postales-erotiques-pin-
ups/sexy-gabrielle-lupin-glamour-fashion-photo-postcard-01-rwp-edition-year
-2010~x129117403

(may need to copy/paste last link, doesn't seem like it's all becoming an actual link)

It's Ariel aka Piper Fawn

Her name is Piper Fawn