Paul McCartney says the Beatles were threatened’ by Yoko Ono

There was no secret about the strained relationship between the Beatles and John Lennon's partner Yoko Ono. But recently talking to The Rolling Stone, Paul McCartney admits that her arrival left the Beatles feeling threatened.
 
“Most bands couldn’t handle that,” he told Rolling Stone. “We handled it, but not amazingly well, because we were so tight. We weren’t sexist, but girls didn’t come to the studio – they tended to leave us to it. When John got with Yoko, she wasn’t in the control room or to the side. It was in the middle of the four of us.”
 
McCartney says that when she used to sit on the amps while they were recording pissed him off the most, but now the pair are like mates.