I Rescued My Son's Ex... She Thanked Me in the Closet: A Ex's Dad Age Gap Breeding Short

I'll do anything to protect her. She'll do anything to thank me! I never thought of myself as a hero, but when I see a bad guy yank my son's gorgeous ex into an alley, I rush to her rescue.  Katie is extremely grateful afterward. I know it's wrong. I'm twice her age and she's off-limits. But with a body like hers, how can I resist? We don't even make it to the closet before she is thoroughly thank...