The couple were wearing pig masks and t-shirts that said King and Queen, and, earlier in the evening, were allegedly screaming and waving a green laser around in a local park.
The "sex pigs", as they have been dubbed have unsurprisingly caused a stir in the town. The waterwheel rendezvous caused traffic to back up the motorway, as drivers slowed down or got out of their car to have a closer look, and the incident at the park left two Pokemon hunting teenage siblings shaken-up.
The teenagers' mother told newspaper Dalarnas Tidningar that the masked twosome "started screaming and waving a green laser" when they saw the teens. According to the Local, a laser beam hit one of the teens in the face - and while they were shaken, they rushed home unharmed.
While the traffic jam is of little bother to the local police, they are concerned about the alleged public sex and laser attack. Officer Daniel Hagthorpe said:
Pointing at someone with green laser can cause injury if it hits the eyes and if anyone took offence to the sex, then it could be considered sexual harassment.