A male model has been jailed for five years for beating up his girlfriend after they attended an upmarket Killing Kittens sex party.
Swede Patrick Ribbsaeter, 32, was found guilty at the Old Bailey last month of causing grievous bodily harm to Wachirapom Sara-Pod.
Miss Sara-Pod, 35, who is also a model, was forced to flee her car wearing nothing but a fur coat after Ribbsaeter beat her up last October.
Trouble started when Ribbsaeter caught her in a toilet cubicle with another man at the Killing Kittens swingers party in Soho, central London.
Judge Richard Hone told Ribbsaeter: "You are plainly a man who is on occasions unable to control his anger and whose behaviour is out of proportion."
He said Ribbsaeter had demonstrated "sadistic pleasure" during the two hours he had attacked Miss Sara-Pod as he drove her towards her home.
The court heard Ribbsaeter was in breach of a community order imposed by magistrates a year ago for hitting Miss Sara-Pod, who is known as Anna, and damaging her car radio.
Ribbsaeter, of Streatham, south London, also had a conviction for assaulting a girlfriend in Sweden, but was cleared in London two years ago of assaulting the chauffeur of his former Saudi princess girlfriend.
Killing Kittens "elite" sex parties were set up by socialite Emma Sayle, who once took part in a charity rowing event with Kate Middleton before her marriage to Prince William.
Miss Sara-Pod was left with a haemorrhage in her right eye and extensive bruising and swelling on her face after Ribbsaeter flew into a jealous rage. He denied hitting her and said he had not been jealous but just concerned because she was "wasted" after taking cocaine.