Not Cheating

Completed

by Mr. Fiction

IncestMotherSisterManipulation

"Of course not! In the ass it ain't cheating."

One throwaway line from his ditzy mom rewrites the house rules — and suddenly "practice" with his sister becomes policy.

Chapters

Six months pregnant—vasectomy truth; Son marks Mom, Sister.

Sister waits out Dad's rage—Halloween practice, knots.

Sister dumped—Son uses Mom’s rules on a long bed night.

Son vents to ditzy Mom—sister practice becomes policy.