Giving evidence on Wednesday, Mr Eubank said he had initially approached the teenager because “she was attractive” and that their encounter was “all very fluent and all very consensual”.
“The body language was very clear,” Mr Eubank told the court.
“There was smirks, smiles, intense looks that we were sharing. Showing we were both attracted to each other.”
Mr Eubank said he had not been drinking the night of the alleged attack.
He also told the court he believed she was “around uni age” and that while she did stumble “one time” as they walked to the beach “it was not a drunken stumble”.
The teenager said he had initially been friendly but became more aggressive “moving her quickly down the beach”.
She said she “didn’t realise” he had pulled her down to the bottom of the groynes near the sea at about 23:30 BST, where he forced her down, the jury was told.