Tonight would be up to her. She sat on the edge of the bed with both of them in front of her and took a cock in each hand and began to wank them. They...both reached down to fondle her titties and pull on her hard nipples and she was enjoying this. She looked at me for approval and then lowered her head and began licking on their cocks then took each of them in her mouth in turn. They both moaned with pleasure as she licked and sucked them, then she pulled them close together and managed to get. .. as long as I'm Daddy, you're still my boy. You start changing up on me and I'll be an old man before my time." Too late, Dad ... you're too late."He looked so crestfallen I laughed. "As for Grace and money ... I've been to Mr. Livingston and set up a college trust for both of us. I won't mention it to her." Mention what to whom?" asked Grace as she opened the office door.Daddy took one look, "Who is this young lady? I'm sorry Miss, do I know you?"Grace was dressed in young adult clothes. She. Your clothing is in storage, and will be returned to you once we have completed our work.”“And what work is that? You’re not going to hurt us, are you?”“We will ensure that our research is as painless as possible. Based on our prior results, you may find our experiments to rather enjoyable.”“You’ve still not told us what these experiments involve,” I said.“You will see soon enough.”“And if we refuse?”“We will perform our experiments with or without your consent, but it will be a much more. She grasped the bottom of my tee shirt, pulling it over my head and throwing it on the floor behind me. She bent her head forward and sucked one of my nipples into her mouth.I picked her up, and she wrapped her legs around me grinding her pussy into me. I sat her down on the edge of the table. She reached down, fumbling with the belt of my jeans. I unbuttoned and pushed them and my boxers down, letting my cock spring free. I stepped out of them, and she grasped my shaft, stroking it. I hooked.