Grandma's eyes widen in excitement and slight fear as she feels that first knuckle pop inside her eager cunt. Her partner's fist, slick with lube and her own juices, pushes deeper, spreading her walls wide. She gasps, her tits heaving, as he begins to fist-fuck her, slow and steady, his hand disappearing entirely, only to reemerge glistening and coated in her stretched pussy.