Japanese babe Junko - without the ability to read Japanese it´s not possible to find more about her, there are to many Junko´s in databases like
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the scene is used many times in different movies
the oldest I found "(2008) Authentic Sushi", Scene #4
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others e.g.
"Anal Teens N Toys 2"
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"A Delicious Oriental Treat"
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"Tokyo Teen Sluts"
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and many more