She makes a visit to grandfather. It is filed under taboo incest, and runs about 1200 words. 4.4 out of 5 from 965 readers.

standingstones also wrote Behind the Closed Door, Spying My Brother and Two Fer Ch. 02.

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.