BRADFORD, England --

English soccer player Adam Johnson has denied engaging in any further sexual activity with a 15-year-old girl other than kissing her in his car.

Testifying at his trial, Johnson told a court he was surprised the girl told police that more sexual activity had taken place and that ''I felt like someone else was telling her to say these things.''

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Johnson has pleaded guilty to sexual activity with a 15-year-old girl and another charge of ''grooming'' - building an emotional connection with a child to gain their trust for sexual reasons. He denied two more counts of sexual activity with a child.

Johnson said Tuesday that his world ''got turned upside down'' when he was arrested by police.

Johnson has been fired by his Premier League club, Sunderland.