Gravity Falls short stories
Pincest Wet Dreams
Dipper opened the door to the attic. His sister, Mabel was sitting on her bed, completely nude.
Embarrassed and red faced, Dipper turned to leave. “Mabel, I so sorry…”
“Dipper wait.”
As he turned to leave Mabel grabbed his arm. Dipper turned and he found he was nude as well. Mabel pulled him in for a kiss. Dipper felt his manhood harden. The two tumbled onto her bed.
Dipper entered her womanhood. He pressed his forehead against hers as he repeatedly thrusted deep into his sister. There grunts and groans grew rhythmic.
“Mabel, I’m cumming…”
Dipper awoke with a start. He turned to see the face of his sister, sleeping soundly. He threw back his blanket. They were dark stains on his boxers and his sheets. His semen felt cold and sticky against his skin. He let out a deep sigh. This was uncomfortable.