What does it mean when someone says "you look like you'd be good in bed"?

[Anonymous]

I was having a couple of drinks with friends and a guy who is a friend of a friend started flirting with me and said the above.

What does it mean? What makes someone look like they'd be good in bed? I wasn't wearing anything revealing.

[ValleyofDrakes]

All he's saying is you're sexy and he's interested in fucking you, but he used less forward language.

He was being decent.

[Hangry22]

He was just flirting to flatter you

[UncleBob]

It means that person is of a lower class.