The court heard how horrified onlookers called police after a man and woman exposed themselves and defecated in the street.
One of those identified as responsible for the incident was Julie Cragg, aged 37, of Barrowby Road, Grantham.
Cragg pleaded guilty to the drunk and disorderly behaviour committed on Lumley Road in Skegness on September 10.
Prosecutor Paul Wood detailed how on that date police were called to the scene after reports of a male and female exposing themselves and at least one of them defecating in the street.
A member of the public pointed out Cragg and the man to the officer, who noticed that they were stumbling and smelled strongly of alcohol.
Cragg was also holding a carrier bag containing two bottles of Lambrini, and admitted that another bottle had been drunk in the course of the evening.
Nearby on the pavement police found a wet patch, fresh faeces, and a pile of tissues.
Representing herself, Cragg said she was sorry and that she had been attending appointments with the Drugs and Alcohol Recovery Team (DART) in order to determine whether or not she has a drinking problem.
Cragg was ordered to pay a fine of £35 and a victim surcharge of £20.