When you think of all the scene from AHDN where the Beatles are running from their teenage maenad fans, it seems like Orton was trying to prick that bubble. Why would guys in their 20s be running away from girls throwing themselves at them (besides not wanting to get crushed)?
There's something in the Orpheus myth embedded in the whole Beatles story.
I heard an interview from a member of one of their support bands who said Beatle concerts were really dangerous. There was a feeling they would get ripped apart if they actually got caught. AHDN just played on that, and turned it around to make them a little coy. Sexual promiscuity would not have gone down well - they were the all- dancing all- singing moptops remember, favourites of Her Magesty The Queen. They had a product to sell, and Epstein wouldn't let anything taint their squeeky-clean image