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Stimulating your anus while gracefully delivering a blowjob to your partner and just before he blows, you pull away, take your finger out your ass and stick it up his nose so that he ejaculates with the smell of your shit in his nostril. He will be disgusted and pleasured at the same time... for the more experienced sexual adventurer.
Hey, I did an Assetricks and Knobelix on my bf last night. He said it shook his very foundation.
by SmuttyBoobs November 22, 2009
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