Affectionate emails a married man allegedly sent to a teenage girl were yesterday aired for a jury in the trial of a 37-year-old man accused of having sex with a minor on three occasions.

The defendant, a British national who cannot be named for legal reasons, denies having unlawful carnal knowledge with the then 13-year-old girl on July 24, July 29 and August 7, 2007.

Yesterday marked day five in the Supreme Court trial, with the defendant represented by lawyer Elizabeth Christopher and Crown Counsel Robert Welling for the prosecution.

The girl, who also cannot be named for legal reasons, denied the defence's assertion on Monday that she sometimes tells stories.

She also, the court heard, had ongoing contact with at least four boys during last summer, sending them text messages well into the late hours of the night.

She has also described her relationship with her father as "very difficult," but said in court that it later improved.

On Monday, while under cross-examination, the girl detailed how the two went to her empty house on August 7, straight into her bedroom where they allegedly had sex for 20 minutes, watched a movie, then showered, before meeting for sex later at another location.

It was detailed in court that the girl confided in an adult friend about the sex, a friend who happened to be friends with her father, also.

That friend, who we've chosen not to name, gave evidence yesterday on behalf of the prosecution.

He said he found himself in a "moral dilemma" after the girl confided in him, careful not to betray the girl's confidence but also remaining loyal to her father.

Recalling when she first told him about the relationship, the friend said: "In the email she sent me (in April 2007) she said 'I have something to tell you' ¿ she swore me to secrecy in the beginning."

He revealed his initial reaction after learning of the supposed romantic e-mail between the two: "It was totally inappropriate, from an adult to a child," he stated.

Later, when the friend met the girl face to face at a Hamilton restaurant, the girl confirmed to him they had sexual intercourse, the friend testified.

"She told me, 'we done it,'" he recalled. "I took it to mean they definitely had sex."

Under cross-examination by Ms. Christopher, the friend admitted to have said in an e-mail to the girl, "Give me all the juicy bits" after he learned of their supposed relationship.

"So you and (the girl) talk about juicy things?," Ms. Christopher probed, "yes" the friend agreed.

The friend read out an e-mail the girl sent him, dated May 21, when she revealed how she felt about the defendant and even copied-in parts of a message the defendant had sent her.

The e-mail had the girl saying to the friend: "You cannot tell anyone because first, I'd probably become homeless, (the defendant) would be divorced and in jail.

"(The defendant) told me he missed me." She copied-in these words allegedly sent to her by the defendant: "'I think you are gorgeous, from the very second I saw you I knew I was in trouble.

"'From the first time I saw you... I've gotten completely crazy about you... I'm just scared because I can't wake up without you popping into my head.

"'It's driving me crazy, romantically insane ¿ I love you... as much as I know I have no right to be jealous if you choose to go out with your boyfriend, I love you.'"

The girl then continued in the email to the friend: "It's gotten really serious really fast, his age doesn't bother me, I feel like such a b***c.

"The worst thing is, I don't want him to end it because of me... he said he would wait until I am 18 before he would do anything to me... I've asked him so many times if he's messing with me."

The excerpt in the email in which it's referred to that the defendant told the girl he wanted to wait until she turned 18, was seized upon by Ms. Christopher, who accentuated that point in front of the jury.

The friend testified that he told the father that "something's up" between his daughter and the defendant, which led the father to call the Police.

Ms. Christopher questioned the friend on why he did not immediately tell the girl's father of the "inappropriate" relationship, if he was supposed to be a "loyal" friend.

Earlier, Heather Gillis, who works at cellular provider M3 Wireless, gave evidence, citing phone records supposedly made between the defendant's and the girl's cell phones last summer.

The alleged calls and text messages between the two started from May 18.

In all, jurors scanned through more than 282 text messages purportedly exchanged between the two numbers and more than 50 phone calls between them.

At the end of the trial, the girl's medical doctor gave evidence that she received a visit from her on July 25, when the girl requested the morning-after pill because she had recently engaged in unprotected sex the night before.

Furthermore, the doctor testified, the girl said the sex she had engaged in was consentual and recalled the girl saying she "felt stupid."

The trial continues today before Puisne Judge Charles-Etta Simmons.