Close-up image of a woman's neck

My girlfriend is 19 and petite, weighing only 98 pounds. She is submissive by nature and lets me tie her wrists tightly to the headboard of the bed. Then, I wrap a scarf around her neck and pull it to gently squeeze her neck. I slide my cock into her lubed anus, and as I fuck her anally, I pull harder on the scarf in order to tighten the squeezing of her neck. The anal thrusting is “balls deep,” which means my cock penetrates the full length of her rectum. As she moans in pain, I cum in her ass.

So fucking hot