Irish writer Rowan Somerville,  has won the 2010 "Bad Sex in Fiction Award" for his book "The Shape of Her".

He 'defeated' female writer Annabel Lyon, who was  nominated for her debut novel "The Golden Mean".

The  "honor" came from  from London's Literary Review. It is annually given to a writer who writes the most ridiculous description of the sex act .

Somerville won mainly for the  line: "Like a lepidopterist mounting a tough-skinned insect with a too blunt pin he screwed himself into her."

The novel was also cited for the sheer volume of sexual description, involving fumbling encounters between two young people the Guardian described as "wince-inducing."

Past winners of the Bad Sex in Fiction Award include Norman Mailer.