He had likewise initially denied engaging in penetrative sexual activity with another young girl, who has special educational needs and who told the court she still has nightmares about what happened to her.
But he subsequently changed his mind and pleaded guilty to those offences.
Lisa Goddard, prosecuting, said Burke began texting the child, describing her as “fresh and pretty”.
He would make sexualised remarks to her before moving on to physical abuse.
The girl later told police she did not protest because she was frightened, and feared she would be blamed for what happened because he was an adult and she was a child.
Burke also sent her a video of him masturbating and photos of his penis, the court heard.
In addition, said Ms Goddard, Burke would get the child to perform oral sex on him.
Eventually, she told her parents what was happening to her and they went to police.
Ms Goddard said the once bubbly child, who has special educational needs, now suffers panic attacks and her schoolwork was adversely affected.
In a victim impact statement, the child said: “I was extremely vulnerable and he took advantage of that.
“I suffer from nightmares from his threatening words – I dread going to bed because I have to relive what he did to me.
“He destroyed the person I once was and I hope the court understands how deeply this has affected my life.”
Lyall Thompson, for Burke, said his client had not groomed the child in the sense that he had offered her money or other inducements.
In addition, there was no physical force used, he added.
Mr Thompson conceded that Burke had not shown remorse to the author of the pre-sentence report but went on: “He has expressed a degree of shame to me.
“He finds it difficult to talk about.”
Judge Kirsty Real told Burke: “She went along with it thinking she would be in trouble with her parents.
“You remain a risk in the future when you do nothing to reduce that risk.
“Your shame and remorse is somewhat limited.”
She sentenced Burke to an imprisonment term of seven years and one month.
Half of that will be spent in custody and the remainder on license in the community.
Judge Real issued a 10-year restraining order preventing Burke from contacting his victim in any way.
Next, he was made subject to a 15-year Sexual Harm Prevention Order (SHPO).
Finally, Burke will be placed on the Sex Offenders Register for life.
