Grant struggles to focus against sexy, intrusive thoughts. It is filed under taboo incest, and runs about 3300 words. 4.4 out of 5 from 156 readers. Part 3 of Obsessed.

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.