David Cameron has been accused of causing nightmares after flagging up his efforts to promote Speedos during his trip to China last year.
Mocking the Prime Minister in the Commons, Pamela Nash, Labour MP for Airdrie and Shotts, thanked him for sharing the image with the House.
She said: "I'm afraid I might have nightmares this evening about the Prime Minister modelling Speedos on his world tour."
Mr Cameron had previously mentioned the company in response to Finchley and Golders Green MP Mike Freer's question about a firm in his constituency called Pentland Group whose success he wanted the Tory leader to acknowledge.
Founded in Sydney in 1914, Speedo is now a subsidiary of Pentland.
The Prime Minister replied: "I believe they came with me on my visit to China where we were pushing Speedos as hard as we could, including getting them on the vital Chinese equivalent to Amazon."
After Ms Nash's jibe, he joked: "Let me reassure you that Speedos do actually make shorts as well as Speedos so if I can clear that picture out of your mind."
His comment was met with a mixture of cheers and laughter in the House.