A first-time Kenyan MP has been asked to apologise after posting a message with sex tips on his constituency WhatsApp group, the local Daily Nation newspaper reports.

Anthony Kiai, also known as Highflyer, appeared to have forwarded the message innocently, and asked members of the group to ignore it after he realised his mistake, it reports.

Group admin Bernard Chege said he asked the MP to say sorry for the “naughty language”. Instead, the lawmaker’s personal assistant apologised, the newspaper added.

The message, in the Gikuyu language, explained in detail how to give a woman an “utterly fulfilling intimate time”, Daily Nation reported.

Some people defended the MP, including one who said: "Is sex sin!!??"

Mr Kiai became the MP for Mukurweini following his victory in August's general election.