It's an interesting fantasy to paint such a fat ass green! Ladies with such an ass are especially good in the crawl position, a boner is assured. Except you have to have a decent length tool. If you don't have one, I recommend laying the lady on her back and fucking her with your hands on her thighs pressed up against her belly. Otherwise you can't get the dick in deep.
What a pumped up and well-groomed brother. So handsome that he even decided to show off his dick. Well, the sister could not resist such a handsome man and decided to experience the cock on herself. What a pressure of sperm, and so you can knock out an eye, it is good that the sister did not choke.