I think everyone should listen to his explanation.
He had his first relationship as a boy of 17 years old by an older man of 29 and it lasted 10 years. He said this happens often with young gay boys (boys meaning the new and younger one).
He had his first sexual experience (which he didn’t approve) at 13 and has always used joking as his way of referring to it. It’s how he deals with things and he apologized because it crossed the line and was inappropriate.