She lost her virginity to her brother. She has more sex. It is filed under taboo incest, and runs about 8400 words. 4.7 out of 5 from 297 readers. Part 2 of Who Taught You About Sex.

regularguy13 also wrote Don't Piss Off the Devil and Oops! Right Name, Wrong Person.

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.