Why did John Lennon not were clothes?

Answer 1

Lennon and Yoko Ono appeared in the nude on the Two Virgins album cover as a statement: "You know this Beatle thing you've heard about? This is how I am, really. This is me, naked, with the woman I love." The pair decided to release an album of the tape they had made their first night together, playing with tape loops and random instruments in Lennon's "home studio" at Kenwood. (The cover shots were taken privately later, in Ringo Starr's Montagu Square apartment where they stayed after Lennon moved out of Kenwood.)

Lennon originally wanted to produce an album with Ono, picturing her naked on the cover "because her work is naked - pure and childlike and simple." He did produce albums with and for her in the 1970s, which Apple Records released but didn't bother to promote, and they went largely ignored by the public and blasted by music critics. When The Beatles dissolved their business partnership in the mid-70s, Lennon had to buy the albums back from Apple. Ono re-released them on CD in the 1990s, to belated critical praise.