The Hash-knife Outfit by Zane Grey

All too soon that dance ended, and Jim got Molly into an out-of-the-way corner, where a few other couples, evidently lovers, were too concerned with themselves to look at anyone else.

Jim believed the tide had turned in his favour, though tragic little Molly was unconscious of it. She gazed up at him as if fascinated, with almost a terrible yearning and hopelessness. "Don't do it," whispered Jim, "or I'll kiss you right here."