Two of Hollywood's most well known faces, Jennifer Lopez and Jennifer Aniston have come to loggerheads over their upcoming films, both focussing on single women wanting to be mothers.

The feud between the two leading stars has been simmering for some time with Lopez accusing Aniston of stealing the idea, reported Daily Mail online.

Lopez who will return to acting with 'Plan B' after taking a break from films to become a mother, is worried that Aniston's film will steal the thunder from her comeback film, a source close to the superstar told the newspaper.

"The last thing J-Lo wants is to have Aniston overshadow her. Theres been some mud-slinging, with J-Lo claiming Jen took her idea," said the source.

Both the actresses are set to star in films that revolve around single women trying to get pregnant as their biological clock ticks away. While Lopez will be seen in 'Plan B', Aniston is currently shooting for a film called 'Baster'.