Ed Sheeran -- Let's Talk About Sex ... I Do a Lot, But I Don't Suck Out Farts

Attention ladies, Ed Sheeran loves going down south, he's just not into the deep, deep south ... if ya catch our drift -- and if you don't, we mean he doesn't eat ass.

Yes, seemingly innocent looking Ed got down and dirty with some sex talk in NYC when he went on 105.1 FM's The Breakfast Club, and revealed his major bedroom DON'T. As Ed put it ... "It's a bit odd, isn't it?"

Check it out ... Angela Yee and Charlamagne Tha God expertly roped him into the cunnilingus convo -- and Ed did some serious thinking out loud.

It's always the quiet ones.