President Trump chased her around the room in his tighty whities.

 Source

In 2006, after Melania gave birth to Trump's son Baron, he was at a golf club in Lake Tahoe where he was having a fling with the porn star Stephanie Clifford who is a friend of Alana Evans, also a porn star. Trump took Stephanie to his hotel room and asked her to call Alana to join them for a 3-some. That's when the conversation took place.