After the break-up of The Beatles it was in essence Paul McCartney against the other three Beatles, John Lennon, George Harrison and Ringo Starr. When McCartney released his second solo album “Ram” in 1971 it included several sly digs at Lennon and his former band. It also included a photo of what Paul thought The Beatles were doing to him.
McCartney felt like he was being “fucked” by The Beatles, so on the back cover you see two actual beetles copulating. Here’s a close-up of the insect porn…
Pretty funny actually.