Daniella Hirst, 28, and Craig Smith, 31, admitted they got a bit 'carried away' after being caught on camera having a little nookie.
The footage shared online first shows Daniella on her knees in front of builder Craig, before cutting to a few minutes later when the brazen pair are stood together at the counter.
In the clip, filmed in the fast-food store in Scarborough, UK, the staff are trying to take their order.
The footage shows the man shielding himself from the camera, with Daniella out of shot on her knees allegedly performing a sex act on him.
Daniella said those who criticised their actions are simply 'fucking boring':
I’m very open-minded about sex and public places — I love the thrill you may get caught. But obviously I never thought we’d get caught like this and end up all over the internet.