A primary school teacher and devout Christian had a sexual relationship with two girls aged 15, a court has been told.
Jonathan Mark Norbury is on trial at Swansea Crown Court accused of nine counts of engaging in sexual activity with a child and five of "inciting" a person under the age of 16 to perform sex acts.
The 33-year-old denies all the charges against him. He admits to having a relationship with both of the teens - but only after they were above the age of consent.
But the Crown said Norbury would pick up one of the underage girls in his car before driving to secluded spots in south Wales to perform sex acts on her - and urging the teen to keep it a "secret". And in his opening of the case, prosecutor Jim Davis QC said the other complainant was sent a series of flirty SMS messages when she was also 15.
Among them included texts which said "you look hot" and "why wear any (knickers)?", jurors heard.
Mr Davis, who said neither of the girls were taught by Norbury, added the prosecution will seek to prove the complainants were both under the age of 16 at the time.
He said: "It's not so much whether or not these things happened but when they happened."
The case continues.