A Pembroke Dock teenager who had underage sex with a 14-year-old girl has been jailed today for 28 months.

Jordan Lee Mruk, aged 19, was warned by a judge he was on a road to longer and longer sentences unless he changed.

Swansea crown court heard that the girl involved had not wanted to help with Mruk's prosecution.

But, said Francis Jones, prosecuting, Mruk had boasted over the Internet about what he had been doing and police had been able to gather sufficient evidence without her co-operation.

Mruk admitted sexual activity with a child during 2016.

The offending came to light, he added, when the girl's mother viewed entries onto a Facebook page.

Mruk's barrister, John Hipkin, said the sexual intercourse had been consensual although he had been aware of the girl's age at the time.

Judge Geraint Walters said he noted that Mruk had been the subject of a court order at the time for other offending.

And on October 11 of this year he had received a sentence of six weeks in detention.

"You have a poor record of offending for a man of your age," he told Mruk, "albeit for different types."

Judge Walters said a probation officer who had prepared a report on Mruk had "come close" to defining him as a dangerous offender.

"I think it is too soon to say that. But you need to understand that if you commit another offence like this one that that will demonstrate a pattern of offending."

Judge Walters said Mruk needed to appreciate that having sex with a child was seriously wrong and on occasions the courts had to protect children even from themselves.