Want to make your ex-girlfriend jealous? Need to show your friends you are in a serious relationship when you aren't? A Brazilian website says it has the answer: fake girlfriends.

NamoroFake.com.br says that for 40 reals ($20) it will create a fake girlfriend and post her profile on Facebook during seven days.

Without revealing numbers, the website says it has "a lot" of male clients who use its services to make former girlfriends jealous and show them they are dating again.

It says "all profiles are fictitious and not based on real people."

Site creator Flavio Estevam tells the G1 news website that men comprise most of his client base but "soon we will create fake boyfriends for women."

An email request to the site for more details went unanswered.