Gwen Stefani and boyfriend Blake Shelton put on the PDA (photos)

Singers Gwen Stefani, 47, and her boyfriend Blake Shelton, 40, couldn't get enough of each other as they put on a PDA make-out session at Studio City, Calif., on Oct. 14. The mother of three said she'd never been happier and hopes to marry Blake some day...see more photos after the cut...