If I found out my sister was a slut, I would have pulled her in the asshole, too. For these guys, getting their asses handed to them is commonplace. Although for the look, they break for a few minutes, but when a couple of drops of lube appear - they quickly sit down anally on the phallus. So this little sister is nice to feel like a courtesan, to show off all her skills in front of her brother, to let him cum in her ass. Every bitch dreams of being the best at it.
What a shower they take, it made me want to do something when I saw them. A threesome, and even interracial with such beauties is a heavenly pleasure. You can stomp on a white girl or a dark one, whichever one you want, you can stomp on that one. Lucky dude to get so high.