Members of the public are being advised to be vigilant after ‘promiscuous behaviour’ was reported at the public toilets in the A52 lay-by at Leverton.
Police and Boston Borough Council have been made aware of the anti-social behaviour after a toilet attendant walked in on two men engaging in sexual activity.
A spokesman told The Standard there ‘has been other evidence’ including a ‘strategically drilled hole’.
The toilet is the only council-owned public convenience outside the town centre.
Portfolio holder for public toilets Derek Richmond said: “We’re informing the public so they know the situation. We are expecting the police to take up on it , because it’s their responsibility.
“It’s not the sort of behaviour we want to promote, really it’s down to the police to police that sort of behaviour and we’re hoping they will take that on.
“As a responsible council we don’t want to frighten people but warn them that this has happened.”
The toilets belong to Boston Borough Council and are routinely and regularly cleaned and inspected by visiting staff.
A spokesman for the council said any inappropriate behaviour taking place in and around the toilets will be reported to police.
A spokesman for Lincolnshire Police said the force had had no other reports of similar behaviour taking place.
Any member of the public witnessing such behaviour is asked to contact police immediately by dialling the non-emergency number 101.