Jennifer Aniston stole the show at Elle's 18th annual Women in Hollywood Tribute event, for sweeping the red carpet in a plunging, low cut sparkly dress; a number that has lead OK magazine to claim the actress is pregnant.

Through her clingy sliver dress, OK Magazine has noticed that Aniston has become slightly curvier and is hiding an alleged bump. She has apparently been wearing more clothing although this could be a result of the cooler weather in New York, where she lives with her boyfriend Justin Theroux.

She hasn't announced it, but all her friends seem to think it's finally happening, an insider told OK. Whenever anyone hints around the question, Jen gets really giggly and shy. It certainly has all her friends buzzing!

Jennifer Aniston and Barbara Streisand were among nine women honored at the Women in Hollywood Tribute at the Beverly Hills' Four Seasons Hotel on Monday. Aniston's dress dazzled the audience and Reese Witherspoon was no exception, as she took to the stage and joked that she wanted to make out with the actress.

Maternity was certainly a feature of the night as Viola Davis, The Help actress, wooed the audience when she announced that she had adopted a baby with her husband Julius Tennon.

Barbara Streisand was also under the spotlight on Monday night. She was introduced by director Kathryn Bigelow as a world icon and someone who had mastered every art, including directing, acting, composing, singing, producing and writing.

Michelle Pfeiffer, Evan Rachel Wood, Freida Pinto, Naomi Watts and Davis all announced that she has been an inspiration for their success. I can't believe I'm sharing the same oxygen as her, said Pinto, after Aniston professed her love for Streisand.

When Streisand took to the stage she put out a bold message about empowering women in the industry. Only seven percent of the top 250 films were directed by women, she said urging her colleagues to be fearless about moving forward in this field.

Let's be bold and don't wait for the phone to ring, she said. Create your own material. Tell me a story, she said.