How do you choose between your best friend and his sister?

All I have ever wanted was to be a prospect of the Fallen Reapers MC.
My best friend Carver is a member of the club,
And I want to be out there riding with him.
I've known Carver's younger sister Zoey for years.
But I haven't seen her since she was in middle school.
When Zoey comes back from college, she doesn't look like the scrawny girl I used to know.
She now has curves and legs for days.
One night with her makes we want to keep coming back for more.
But if Carver ever found out about us, that would be the end of our friendship and any chance I had with the club.
Soon I'll have to decide which is more important.
Zoey or being a Fallen Reaper.