I picked up the pace and started ramming my cock hard into her now wet cunt. She was moaning and saying “Yes, yes yes fuck me big brother fuck your ...ittle sister”. My older sister was fingering her clit hard and fast by now and I knew she was going to cum. I was pumping my little sister’s pussy now for all I was worth and enjoying every minute of it. I felt her start to shake and get stiff and I knew she was about to have her first orgasm on her big brothers cock. “Oh shit I’m cumming cried out. Were in the air from dark thirty to dark thirty. Maybe twelve sorties a day ... sometimes more if the army was in retreat and needed the air-cover. The airdrome might be 20 miles behind the lines."He shaded his eyes and gazed into the darkening two acre hangar. "Most everything I can see flew 220 miles an hour at least. Fly out, strafe the enemy infantry, fly back, rearm refuel ... takes an hour turn around tops and many ground crews were faster. A good ground crew could get a plane and pilot. But I don’t. I’m teasing myself, and I’m driving Rick wild with excitement. “Suck my cock; Dave” Rick demands as he pulls hard on the back of my head, trying to force his cock into my mouth. But I turn away, only glancing along the full length of his cock as he guides my head towards his stomach. I reach behind my head, remove Rick’s hands “I’ve got this, Rick” I say, and I start to lick the full length of his cock. Pausing at the top to run my tongue all around the bulbous head and pausing at. "You just wait ‘till my cock is 10-12 inches long." "Are you going to fuck me when it’s that big?" "Yes I will and so will both of our sons. From now on, you don’t get to fuck anyone at all." As I finished saying this, I looked around and saw both of the boys standing in the doorway. I smiled at them and said; "Well, they’re the new rules. Your father is also going to suck your cocks from now on and you can fuck either of us, anytime you feel like it. If he breaks the rules and tries to fuck.