A Mablethorpe martial arts instructor has been told to prepare for jail after he admitted sexual activity with two under-age girls.
Adam Beniston, 27, pleaded guilty to 11 charges of sexual activity with a child when he appeared at Lincoln Crown Court on Tuesday.
Seven of the charges relate to kissing and touching a teenage girl between July and December 2010.
The four other offences relate to kissing and touching another teenage girl between February and November 2011.
Both girls, who can not be named for legal reasons, were interviewed by specially trained police officers after the allegations were made against Beniston.
Beniston, of High Street, Mablethorpe, denied two other charges of possessing indecent photographs of a child on his mobile phone and causing or inciting a child into pornography.
Phil Howes, prosecuting, told the court that Beniston’s pleas were acceptable and the Crown Prosecution Service would not be seeking a trial on the matters to which not guilty pleas were entered.
Sarah Munro, defending, asked for the sentence to be adjourned for the preparation of a probation report on Beniston.
Miss Munro told the court: “He has been on bail. There has not been a condition of residence.”
Judge Sean Morris granted him bail for the report but warned him prison is inevitable when he is sentenced in three weeks’ time.
“Having made this mistake in your life, you have done absolutely the right thing in admitting your guilt at the first opportunity,” Judge Morris said.
“You will be given credit for that and I will adjourn sentence for a pre-sentence report.
“But you must understand a custodial sentence is inevitable so you have got some time to put your affairs in order.”
Adam Beniston moved from Mansfield to Lincolnshire three years ago and was crowned coach of the year at the Lincolnshire Sports Awards last year, an award handed to him by BBC Sport presenter Dan Walker, and was runner-up in the overall sportsman award.