Where is this screenshot from?

Hey I need help finding a hentai. Stumbled across this picture and recognized the character but it's so small I can't properly reverse search it. I think the title had something about an exhibitionist and sadist in it. The best girl was the exhibitionist and the guy was the sadist. It was a few chapters long. I think the girl eventually ended up pregnant (either that or she was given an enema in the car on the way to the beach) and after the guy fucked her and her friends on a beach. That was the last chapter. I don't remember too much of the plot since I read it in like 2012, but this has been bothering me since I saw the pic.
Thanks.