The girl stretches the guy's ass. She inserts three fingers of each hand and stretches his hole so that you can see everything inside. She does this many times, turning his hole into an anal gape. Then she inserts an anal plug with a hole in his ass. She milks him like a cow and then pours his cum in his asshole. And at the end she stretches his ass so that you can closely see how his own cum flows out of his ass.