These five innocent, inexperienced good girls have been saving themselves for someone special—the problem is, the one person they want more than anything in the world is someone totally off-limits. These five hot, sexy bad boy stepbrothers can’t resist their untouched stepsisters, no matter how taboo it might be. They want to go where no man has gone before. They’re hungry to mark their territory and fill these fertile fillies with the fruit of their loins.

In a last ditch effort to save their marriage, Laura drags her husband, Rick, to a couples workshop. But Laura gets a little more than she bargained for when the workshop leader proposes a rather unorthodox experiment, leaving her helpless to her husband's whims. She finds herself wondering, will her man be a caveman or a gentleman--and which one does she really want him to be?

Ellie is living the life of a true starving artist in a small efficiency apartment in dangerous downtown Detroit, but more dangerous than her surroundings are the men to whom she pays rent. Denied help by the man who raised her, a prosecutor who believes she's wasting her life on art, Ellie finds herself in a precarious position and surrenders helplessly to her predicament. However, a strange twist of fate gives Ellie a chance at revenge. Will she take it?

Shauna's in trouble. Her parents have kicked her out for getting knocked up. She has nowhere to go, nowhere to turn, and a small baby to take care of. That's when her big, sexy, older construction-working stepbrother rides in like a white knight to rescue her. Ryan has always looked out for her, and when he invites her to move in with him, Shauna thinks it's just a convenient arrangement - he'll provide food and shelter, while she'll do the cooking and cleaning. But Shauna finds her needs are far greater than she expected.

Bailey's graduate science classes are much harder than she expected them to be, and strict, young Professor Jacobs, in particular, seems out to get her, finding minute mistakes in her work, making her re-do assignments she's already meticulously completed. When he forces her to start staying late in the lab, Bailey complains to her roommate that she's about ready to quit school altogether, but what she doesn't know is that her stern professor has a carnal lesson he's waiting to teach her.