Jon woke up before Jen and took a good look around their room. Having a new twin sister apparently didn't make either of them particularly neat, as there was clothing strewn about the room. Jon's old bed had been replaced with a new one that could accomodate him and his sister. There was a second dresser that had Jen's clothes in it and half of the closet had Jen's stuff in it. Some of Jon's stuff also had been replaced by equivalent items that belonged to Jen. Jen moaned and woke up.
"Why didn't you wake me up?" asked Jen. "I wanted to have sex quick before we got dressed." She began taking off her pajamas and allowed her breasts to bounce free of their confinement. At the sight of his twin's 'twins,' Jon felt his cock stiffen.
"I think we can get a quick fuck in," said Jon. Jen slid out of her pajama bottoms and spread her legs, revealing an eager pussy surrounded by a frame of blonde pubic hair. Jon eagerly thrust his manhood into her womanhood and discovered that they knew exactly how to please each other. They achieved mutula orgasm and both gasped as Jon shot his seed into her waiting pussy. They dressed, his sister putting on a flattering blue blouse and knee length black skirt. They both went downstairs, holding hands all the while.
They met thier mom down in the kitchen. Now was the moment of truth. Would Jon's mom remember having an extra daughter? "There you two are," said thier mom, not batting an eyelid either at her new daughter or the fact that two of her children were holding hands. "Quick, eat your breakfast so you can get to school."
"All right, Mom," said Jen. They sat down and ate thier breakfast, Jen batting her eyes at Jon all the while.
"It's good that you two love each other," said their mom. "You've always gotten along so well; and now that you're partners, well, its beautiful, not to mention making it easier on your father and I that you've had so little sibling rivalry." That confirmed that their incest was normal. "Sometimes I wish Zoe had a brother like that in her life."
"Eww, Mom," said Zoe. "Just because its ok for Jon and Jen to have sex, doesn't mean I'd want to have sex with a twin brother."
"Maybe you're right," said their mom. "Now have a good day at school."
"Thanks, Mom," Jen called out as they left the house. As Jon and his sister waited for Karyn, Jen wrapped her arm around his waist and snuggled up against him. Jon did the same for his sister. Finally Karyn appeared and they walked to school together. Karyn did not seem the least bit phased either by Jen's appearance or thier holding hands all the way to school. Finally they got to school and Jen kissed her twin goodbye and went to her first class.
