"Sales generally double in areas where they are autographing," Cermak said.

Such signings are standard for college and celebrity issues in order to increase sales and media exposure, he explained.

And when there's a protest, Cermak said, the rewards are even bigger.

"Protests usually bring bigger crowds and more fun," he said.

Even without a protest, the event attracted extensive media attention. Local college newspapers, Channel 7 News and New England Cable News all attended the signing, thrusting microphones in the faces of the three models and struggling to write down comments on damp paper.

Seated under the shade of a large, green umbrella, the models nodded, smiled and politely commented for the reporters.

Keller, who posed nude for the publication, said she felt the attention was "positive, exhausting in a way...I don't know, fulfilling."

The three models agreed that, for the most part, the media and the autograph seekers were courteous.

"I was surprised because I thought people might be obscene, but they were very nice," Johnson-Arbor, who posed semi-nude, said.

After a while, all the attention became old hat, she added.

"It's the same thing over and over," she said. "They wanted autographs mostly because we're from Harvard--I think it's the novelty of it. People would come up and talk about our SAT scores and our careers."

But all three say the attention has had a down side. Proctor, who posed in a sheer sweater, and Johnson-Arbor have received e-mail from men ranging from complements to obscenities. All have received telephone calls from middle-aged and older men regarding breast size.

Johnson-Arbor said she found many of the messages amusing.

"Guys send me messages saying how jealous they are of other guys who have e-mailed me before. There are some guys from the military academics who have invited us to Homecoming," she laughed.

"They try and make their messages all personal, saying "You are the most beautiful one' and everything, but they send it to all of us, and don't even bother taking the other addresses off the top," she added.