Doing fisting until she make orgasm

The woman's fist, covered in latex, slowly penetrates her anus before being pulled out. It's filled with her own juices and barely any lube. She begs for it to hurt less as she's fisted, her asshole stretching wider and wider with each passing second. Eventually, she cums hard against the pain, the pleasure too much to handle. Her walls clench around the fist, milking it for every drop of cum inside her.