The music clip to accompany the single has provoked censorship bosses across the world - and the promo is banned in 11 countries, reports The Age.
It has also been axed from the BBC's daytime radio playlist in Britain.
The song's suggestive lyrics and the accompanying video - in which the Bajan beauty is seen writhing in latex, tying a man to a bed, and sucking a banana - are already subject to an age restriction on YouTube.com.
And now it has emerged broadcasting watchdogs around the world are clamping down on the track.
Rihanna is seen sucking a banana and leading Perez Hilton around on a dog leash in the clip.
Britain's Daily Mirror reports the promo for S and M has been banned in 11 countries, and BBC bosses in Britain have refused to allow DJs on its flagship station Radio 1 to play the song before 7pm.
"We are waiting for an edited version before deciding whether it will be played in the daytime," a spokesman told the publication.
In an interview with website Spin, the 22-year-old singer said it had a deeper message than just sex.
"I don't think of it in a sexual way, I'm thinking metaphorically," Rihanna was quoted as saying.
"People are going to talk about you, you can't stop that. You just have to be that strong person and know who you are so that stuff just bounces off," she added. (ANI)