Please help us we are very worried

Hello my name is - Andrea My boy friend was a 14 year old kid (Boy) and he kissed a neighbor girl who was10 or 9 as my other friend was challenging him that he cant do it I know it was a mistake that he did it and it happend before 2007 as it is more than 12 years now and he is 27 years old. Can the parent of the girl file a case against him now. Please let me know ,as we are afraid and my boy friend started to think more n more about this and we dont know what to do .We would appreciate any solution on this above. One of the respected lawyer answered the question but I am not able to reply to him also can anyone tell us please will my boyfriend be in trouble