This is one of the all-time greats!! Simply beautiful. She probably has 5 or even 6 orgasms, all without stopping. I do envy the stamina of some women!
Here's another good amateur masturbation. This woman, probably 19 yo or in her early 20s, enjoys being video'd while masturbating. She and her partner have made a dozen or more videos of her masturbating to orgasm in various situations, often publicly. The video quality isn't ideal, but the orgasms are and she's a very pretty woman. http://xhamster.com/movies/676228/sexy_april_on_the_red_rocks.html
This one is interesting - quality is not great but te content is - hot amatuer jilling session in front of a mirror with 2 beautiful girls in there 20s.