These so-called flexisexuals say that although they are not gay or even bisexual, they enjoy flirting and kissing girls -- but they still enjoy having sex with men.
One female senior at Hofstra University in New York said she is apt to turn to women when she's had too much to drink.
"I just kiss girls because it's funny and entertaining to do when under the influence," she said. "When you just kiss a guy, you deal with the pressures of feeling like you have to go further, and with girls that is never an issue."
The student, who declined to give her name for fear a future employer might Google her sexual escapades, is one of many young women who are more flexible in their attitudes about sex.
Experts say they may be influenced by the growing visibility of same-sex couples and more open attitudes about sex in general.