"I'm a slut, please make me come Daddy." He smirked in contempt, pulled his fingers out of me and slid one of his wet fingers into my bottom. I wasn't...expecting it and it went in easily but my body reacted to the intruder by instantly clamping down hard on it. I began to panic thinking of what he might have in store for my tender backside and I wanted to distract him by any mean necessary. "Please JJ, Daddy, please make me, your slut come, please Daddy, please." He started thrusting his finger. "My thoughts exactly. I already made ​​some tests with ordinary cow's milk, but unfortunately there was no reaction by the samples. And I honestly have no idea where I can get hold of human milk to test this theory." That's your biggest problem? To get hold of some lactating females? Consider it solved. I'll send an appropriate team over to your lab." Thank you, General. That's all" Dr. Bright?" Yes Ma'am?" Good job! Investigate further and find us the secret weapon that we so desperately need.. I wasn’t so urgent with this one and just started kissing it gently and licking the areola around the nipple then teasing the nipple by just barely touching the tip with the tip of my tongue. I could feel her breathing becoming somewhat labored so I went for it all and raised my hand to her free breast and started fondling it, teasing it, tweaking it between my thumb and forefinger. Before I knew it I had an enormous hard on…for my sister? All I knew is that I didn’t want to stop playing with. Glancing at the table, he saw a page resting with only a small corner at the edge of the desk. Breathing a sigh of relief, he relaxed by leaning against his giant body pillows. They easily supported his small frame.There was a knock at the door. Shock and surprise filled Leo's head when he realized it must be Betty. She couldn't find him like this. What would he say? How could he explain if he didn't even understand it himself?The knock came again, and Leo bit his lip as he tried to think of.