20 minutes later they were in Kirk's room. His 11 inch cock felt like a piece of iron sticking straight up from his groin as Krista and Kimberly licked and kissed all over it while fondling his rapidly filling balls. "Aaaahhh God Kim," he groaned as she sucked 2 inches into her mouth. "Feels so good Kim." It was going to be a good summer if this was the way his little sisters were going to treat him.
"Don't let him shoot yet Kim, I want some Jizz too," Krista said as she sucked on his now full balls.
It was already too late as Kirk gasped, "Ooooohhh Kim, you're gonna, you're gonna, oooohhh shit," as the ejaculation he was trying to hold back exploded into Kimberly's mouth when she sucked another inch of his cock into it. Her throat worked as she tried to swallow it all but some leaked out the corners of her mouth dribbling down Kirks cock. Krista's tongue was there to lap up what Kimberly missed.
"Kimberly, I told you to wait," Krista said angry that she had missed her share. Kimberly smiled and opened her mouth; it was full of Kirk's Jizz. "Oh good you saved me some," Krista said as she kissed her twin collecting her share of Kirks Jizz.
"Where did you learn about blow jobs and swallowing Jizz?" Kirk asked looking at the twins.
"From looking at Dads magazines he hides from mom in the garage and hearing kids talk at school," Kimberly said. "Besides I've wanted to taste your Jizz ever since we saw you jacking off over a year ago. You won't have to waste it anymore. We'll suck it out of you everyday if you make us feel good too."
"How do you want me to make you feel good?" Kirk asked.
"Like this," Krista said as she straddled her big brothers head and spread the lips of her 18 year old pussy. "Kiss it and lick it like we did your cock. Kimberly and I do it to each other all the time." Kirk stuck his tongue out and tentatively licked at Krista's pussy lips. "Ooooohhh yes big brother, do it some more." Kirk became bolder and started to stick his tongue up inside Krista's now throbbing pussy. "Oooohhh big brother, you're making me all squishy inside," she said in a little voice as she gushed a little juice squirming on his mouth.
"Get off Krista," Kimberly said. "It's my turn. I want some too."
Krista was squirming all over Kirks mouth. He opened his eyes and thought her nipples were engorged. He reached up with his hands and rubbed them over Krista's hard nipples. Krista's pussy gushed a lot more juice and squeezed harder on his tongue as she gasped, "Oooohhh damn Kirk, that's good."
