Police are hunting an overweight dog walker who "dangled his penis over a wall" in front of a group of teenagers.
North Yorkshire Police have appealed on Facebook for information from the public after the man is alleged to have exposed himself to the group by a canal in Selby.
The sex pest with a large build had allegedly asked a girl to hold onto his dog — a black Labrador — while he urinated behind a wall, before intentionally showing the youths his genitals.
He also followed two teenage girls from the group and asked one of them if she had a boyfriend, Hull Live reports.
On Facebook, the Selby Neighbourhood Policing Team said: "On Wednesday, October 21, between 4.50pm and 5.15pm, an unknown male walking with a black Labrador, has approached a group of teenagers by the canal near to where the bridge meets Denison Road in Selby.
"This male has requested a teenage girl hold his dog while he went to urinate behind a wall.
"The male is described to intentionally expose his penis, by 'dangling' it over the wall for them to see.
"The male has then followed two of the females and asked one of them if she had a boyfriend.
"The male had a white van, suggested possibly a Renault Kangoo, parked by the waterfront in Selby."
The man is described as being white, in his 40s or 50s, approximately 5ft 6 or 7, with a large build and almost black hair.
He was wearing a black T-shirt, dark blue baggy jeans and wearing Timberland style tanned boots at the time of the bizarre incident.
Anyone with information should call 101, asking for North Yorkshire Police and quote reference number 12200185033.