It looks very unpleasant - a well-pumped guy is trying his best, and the lady's face is covered with a strange grimace. In general it is not clear - whether she enjoys sex or performs an unpleasant duty! And the body of the lady is not particularly that glitters, and her breasts and nothing at all!
I always suspected that mature blondes were hotter than young ones. No shyness and awkwardness: you want anal sex - get it! And all this with a smile, burning eyes and a clear desire to repeat it over and over again!