"Oh yes Grandma Honey! Suck that cock! suck that cock!" I groaned loudly for the camera, and happily she continued too.After a good few minutes I was ...efinitely hard and ready for more, and so I got my Grandmother to stop sucking my cock, and lay back again on the bed.And as she did that, I moved around to her stocking clad legs, stepped between them, and then knelt down, before I lowered myself towards her.My Grandmother watched me getting closer, and when my hard bulbous cock was just inches. . I knew what I was doing. I knew what would happen." I wanted to get through to her, but I didn't want to devastate her. She cried harder."I'm so s... s... sorry, Patrick! I didn't mean to hurt you! Why... why would you do that? I don't understand." We've discussed this before, Sammi. You are my daughter. I love you. I would die to protect you. I don't know what else I can say or do to help you understand that." I held her, listening to her cry."I do understand, Patrick. I do. I just... I. Instead you get a pale, insipid sort of moldy green that looks like ... well ... milk that’s gone off in a really bad way.“Taste it!”I glanced at Mum doubtfully and then cautiously sipped at the “milk.” To my surprise, it tasted like, well, milk! I shrugged at Mum, then put the glass back on the table. “It’s okay, I guess!”Very soon, Tara had milk that was sickly yellow and Dad’s milk was a mid-brown. It looked like a glassful of mud and not at all as appetizing as chocolate milk. Then Mum. It was just harmless fun, but I couldnt do that often because it was just too uncomfortable pretending to have sex while pretending to be doing homework on the family computer that Im pretty sure Dad bought just to use for porn after everyone else went to bed. My Dad isnt the brightest, so it didnt take long before I snooped into his browser history and saw graphic sex displays for the first time. It probably wouldnt have been too bad if Dad wasnt a perverted masochist, but all his pictures.