Adam Driver from Girls on HBO

He plays Adam Sackler on the show Girls. Twice on the show he has had scenes where he masturbates. The camera is positioned so you cannot see his cock but you can see his arm move up and down. It looks like his cock is huge, like 9+ inches. Any pics or personal experiences? Anyone else watched the show and thought that it was a bit exaggerated?

this is the only clip I could find...if you have one post it pls.
Girls Season 1: Episode 8 Clip -...

Adam Driver from Girls on HBO