Almost three months and a decent round of finals later, Winston came home. His parents had hopped their flight to South Africa two days before to join their first safari of the summer. He called his sister from the car on the way home to let her know he was coming.

She bounded out the side door to greet him as he pulled in the drive. Winston's eyes tracked up her incredible long, tapered alabaster legs sheathed in a small pair of khaki shorts. Her tiny blue tank top showed a bit of her smooth flat belly. Her long dark hair was damp and gathered in a loose ponytail that...