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1.
when sisters are pregnant with the same man's children. cousin siblings
my sister and I got knocked up with my boyfriend during that three way we had. I can't wait for our cublings to be born!
by Roberto Swarlos March 30, 2009
3 6
 
2.
placing testicles in the mouth simultaneously with the penis during felatio
Aimee was expert at cubling while blowing Mike.
by slowmike January 16, 2006
9 16