Stephanie Kuleba led the perfect high school life — she was head cheerleader, had good grades and was planning on attending the University of Florida this fall as a pre-med student.

But the high school senior, 18, felt something was missing: perfect breasts.

When she died last Thursday from surgery complications stemming from a breast augmentation, her friends were shocked.

"It's hard to believe she's gone," classmate Vanessa Villegas, 16, told the New York Daily News. "She just made everybody's day by having a good attitude about life."

Kuleba — who was upset that her breasts were not the same size, and that one nipple was inverted — died from a reaction to the anesthesia. She was taken to an area hospital from the outpatient facility in which she went under the knife.

"The surgery itself was very personal," Benny Perlman, a family spokesman, told the Daily News.

Meanwhile, her high school pals held a candlelight vigil at school — displaying her silver cheerleader pompons on a fence, and decorating the senior parking spot, where she'd normally park her Lexus, with flowers, photos and teddy bears.

The American Society for Aesthetic Plastic Surgery reports that the number of women 18 years and younger who have had their breasts enlarged has risen by almost 500 percent over the past decade.

The surgery costs $4,000 on average.