"Some people say body odour can be an aphrodisiac and I agree. It depends on the body the odour is coming from. It's a long-term intimate thing," contactmusic quoted him as saying.
"You don't want it to be the first thing you smell when she comes into the room. It's about layers. Layers that are meant to be discovered," he added.
Timberlake, who is currently dating actress Jessica Biel, had previously romanced Cameron Diaz and Britney Spears.