Make Sure I Win by Barry Devlin

She would do anything to win — anything!

A shocking exposure of those college beauty contests, and what happens to pretty young co-eds when the slick promoters come to campus!

From the back:

Youth defiled!
All the girls were excited. Maybe that’s what made them such easy pickings when the promoters moved in. Until then it had looked like good, clean fun… Just a matter of choosing a campus beauty queen!
To handle “professional” aspects, hot-blooded Gladys Hynd arrived with her personal pet, Roger Bennett—but he soon found the local talent more interesting. Take blue-eyed Susan Douglas, devastating off-campus temptation. Or that fetching miss, Dene Burton, who would do absolutely anything for a vote — or simply for fun….
ACTUALLY, Dene’s fun included taboo ecstasies in the arms of other co-eds — like that pretty darling for whom Dene was trying to garner votes. Dene’s twisted hungers led her first to abuse, then possess, the buxom Gladys — while Roger, as a contest judge, found himself voluptuously involved with a pretty, if not so innocent, bystander! A novel which bluntly reveals the sinful practices tempting today’s college youth!