Get scared and walk away from the wild side.
From Create Your Own Story
That tryst with your brother spooked you plenty - you could've been pregnant, with DNA that told the story all too clearly. That kind of life is not for you. You plunge yourself into your work, and you're very careful what guys you date.
Sometimes, though, you do think back on that morning in your parents' house, your forbidden fun, your eager little brother, his cock, his cum...and you pleasure yourself the safe way.
Years pass before your sexual frustrations end in normal dating, love, and marriage. It seems to take forever to get there, but you do get your happy ending.
THE END.