One of my favorite pairing is Ann and Justice. They had a sex video together and another rump in a gang bang.
In their first video together, Justice was knocking his body into Ann doggy style and Jan asked her "Is it too much Ann?" She whimpered "Oh, just a little bit". Justice just ignored her and continued to assault her pussy. You could see the difference in the size of his body and her body together from that camera angle.
In the gangbang, Ann rode Justice the second time and he fucked her so hard, she literally barked like a dog. So much so, the other guys in the room started barking along with her. I remember the first time I saw it, it almost made me uncomfortable. It was a real moment you rarely see on video during intense sex. He literally made her bark like a dog!