Results showed that almost all women were aggressive toward the attractive female whose only indiscretion was to dress in a sexually provocative manner. The women in this situation were more likely to roll their eyes at their peer, stare her up and down and show anger while she was in the room. When she left the room, many of them laughed at her, ridiculed her appearance, and/or suggested that she was sexually available. By contrast, when the same attractive peer was dressed conservatively, the group of women assigned to this second scenario barely noticed her, and none of them discussed her when she left the room.
A second experiment confirmed that the sexy colleague was indeed seen as a sexual rival by women. Results indicated that women did not want to introduce her to their boyfriend, allow him to spend time alone with her, or be friends with her.
Collectively, these results provide support for the idea that women do engage in intrasexual competition by aggressing towards sexy female counterparts.