...ir sex organs with each other's sweet juice. Bart let Lisa hug and kiss him, while still spurting into her.
"I love you Lis'."
"I love you Bart, so much. Thanks for cheering me up."
She hugged him hard and kissed his cheek. She gently pulled the bed covers over them so that Bart's softening member wouldn't fall out of her.
Embracing him in a hug she snuggled down beside him.
"Boy or Girl?"
Then they slept, Bart's penis still safely tucked all the way up inside his little sister Lisa's soon pregnant vagina.
Lisa slowly opened her eyes. Beside her lay Bart. She had been sleeping with him for a while now. Ever since they had last shared a moment of pleasure together. She looked at the clock. `Time for school' she thought. She slowly shook Bart awake. "Bart honey, we've got to get up," she whispered into his ear.
Bart moaned as he slowly woke from his peaceful sleep. Lisa kissed him on the cheek and then the lips.
It had been over 2 months since Lisa had last fucked Bart. Bart had tried to do it since but Lisa hadn't let him. It was hard for her to keep making up excuses but she didn't want to tell Bart the real reason. She wanted to keep it her little secret for now.
Bart kissed Lisa and then climbed out of the bed and went to the bathroom. He was lucky to get in before Lisa. For the past few weeks she had been in there being sick.
Bart had asked her if she was ok but she had just said she had eaten something bad.