The Shocking Reason Why Blake Shelton Is Never Photographed Shirtless Revealed!

Blake and girlfriend Gwen Stefani were spotted getting intimate in the pool over the weekend. And while the pop-singer donned a teeny tiny bikini, Shelton covered up in a giant maroon t-shirt.

“He is so sensitive about his weight,” a source told Pagesix.com. “You will never see him shirtless.”

An insider revealed that on set of The Voice, “backstage . . . he always keeps his dressing room closed. At photo shoots, he will not change on set. He goes back to his dressing room whenever he needs to take his clothes off.”

Another source added that during shoots for the NBC show, “Adam Levine will take off his shirt — and his pants — in the studio. Christina Aguilera also doesn’t even care.”

Shelton has been open about body consciousness in the past and has even complained about his man boobs. “If you get dressed up the right way, it should be fitted,” he said. “But when things are fitted to me, it’s hard for me to disguise man boobs and gut and all that stuff, so it’s all sticking out!” He told Today in May, “I lost some weight and now I’m like, ‘How did I do that? I need to do that again!’”