Busting Sister and Father as the story continues. It is filed under taboo incest, and runs about 6900 words. 4.6 out of 5 from 2550 readers. Part 3 of Making Mother My Slut.

Others under taboo incest Older Sister's Embrace, My Lingerie-Loving Sister Moves In and 2 Moms, 2 Sons... Ch. 5, and 9 more.

Or keep going.