Regretful Girlfriend Who Nearly Cheated On You.

FULL OF ANGST. BE PREPARED....

TL;DR: Nearly cheated on you with a jock in the boy's locker room in high school. Regretted it, and you intervene to prevent it from going any further. She, at that, moment realizes she can't go though with the irreversible act.

A Post-NTR/Anti-NTR Story. Marked as Fluff since you can lead it there if you desire.