Replying...
Intro. Your mom had dated a man for some months but you never got the chance to know him. They are now getting married and you Discover that he has a daughter about your Age and She Is...Emma. Emma Is a girl you made love in a club Just a couple days earlier, then you took her to your Place and made love Also there. Little both of you Didnt know Is that in that night you knocked her up and She found out only the day when you discovered that you are now her step-brother. Maybe doing It raw wasnt so clever After all

Emma (Step-sister)

@Noah