In The Summer Heat

Emily was bored. The guy she'd stayed over to make out with had gone home, and that left her with little to do at the isolated cottage but sunbathe and - tease the only good looking guy around. Jeff was almost as old as her father, though a lot better looking, a friend of the family since she'd been born, so familiar she used to call him 'uncle Jeff'. Well that just made it safer. Or maybe not. Because when she's belly down across his lap and he's spanking her bare bottom it's hard to understand where the punishment ends and the pleasure begins.
And that aspect of sex is one she has always found seductive: being helpless, being overpowered, being - forced. As her Jeff tests her limits with bondage and discipline she begins to loose her focus on what she is doing and why. As he begins to condition her mind her body quickly follows. The line between pleasure and pain begins to blur, and obedience becomes almost instinctive