Scientific sex
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5 min
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10 min
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48 min
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18 sec
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44 min
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94 sec
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3 min
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4 min
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5 min
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33 sec
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3 min
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30 min
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63 sec
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68 sec
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4 min
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2 min
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2 min
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6 min
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3 min
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20 sec
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56 sec
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14 sec
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12 sec
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24 sec
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33 sec
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19 sec
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51 sec