His cock sprang to life because Abby was there in just her white panties that she wore since dinner time. He was really jealous and angry too as he started having feelings for Abby so he did not want other men to touch her especially her dad as he knew that Matt was usually rough with her when he was horny. Jeff wanted to barge into the room to rescue his little princess but he did not. He couldn’t afford to risk his chance of being able to fuck his princess once she’s done with her dad. So, he could only pull out his cock from his pants and started stroking it while watching the live scene of Abby sucking her dad’s hard cock. After a little while, Abby noticed Jeff peeping at them while she was sucking her dad’s cock. She gave Jeff a glare, warning him to leave them alone. So, Jeff went back to his room, lied on his bed and stroked his cock gently while having lustful imaginations on what was happening on the other bedroom. Many wild imaginations came to his mind such as Abby. "Ken said, "That's an interesting concept but we do have mountains in this country and hills. In theory though, if you knew your route and it wasn't going to change, if you knew the weight and the speed, we could design a completely efficient truck to the demands you set forth. I could see, in the total flat area you used in your example, a decrease of almost fifty percent in fuel."Next, I said, "Let's use the same example but change the environment to the Rocky Mountains or the rise to the Rockies. This would be up and over in the morning and then turn around and go up and over on the way back. This isn't a normal mpg, but if the mpg was five now, if we could make a change in design would it be more efficient and more importantly safer? Very often, trucks going down a mountain are very dangerous if their brakes fail. To resolve that issue, could we also design brakes that creates energy that we could use elsewhere?"Ken said, "Using your idea I think a fifty percent savings could be.
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