You gotta admire commitment in anything. This young lady was so devoted to the scene that when it came to anal, she soldiered through it. When it came time for the cum shot, she fellates his fecal flavored ram rod without hesitation.
He seems pretty happy about his achievement. Try doing the same thing again except next time stick your cock in her ass first. When she comes up to blow you she won't gag, she'll just puke. It's called "ass 2 mouth". I invented it.
If your penis is insufficient, watch this video and learn how to give a girl an orgasm so big that she'll giiggle like school girl and love you forever. This would be quite a change for me, most girls just spit in my face after sex. They just can't seem to appreciate ass 2 mouth.