I am joined by Step-Sister Mistress Malika ready to undergo a very important cum extraction experiment! Our cum cows positioned, bent over at the ready as we whack on our latex gloves and lube up! Time to tug the cum out of these blue balls for research purposes! However, we do only need one sample today, so the first to cum gets his release, the other lame blue balled cow will just have to be locked up and put back ready for next time!