When I realized I had complete control this time and didn't have to worry about knocking her up and thinking if I blew my load in Mary I wouldn't have to worry about accidentally pumping a potent load of sperm in Jessica and knocking her up too when we resumed our posing for Mary's school project in the morning. A big smile spread across my face as I thought this time I'm going to blow this thick gooey load where and when I want it with no worries. It took a few minutes but I finally got her little twat worked up into a creamy froth as I pushed deeper...