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Placing both hands together, then spreading fingers in a Spock-like manner (Live Long and Prosper). The lower 4 fingers are inserted into the anus, the upper four in the vagina, and your two thumbs are busy on the clitoris. The "Double Spock" with thumb action.
She, being logically minded, requested the Double Spock.
by anonystiz May 15, 2016
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