So, did Andy Cohen sleep with Lance Bass or not?

Embarrassing! Lance Bass is now denying that he slept with talk show host and author Andy Cohen.

It appears that the fuss is actually all about how you define sex.

Earlier this week, the always-sexy Andy, 46, told Real Housewives star Sonja Morgan that the most famous person he’s slept with is none other than the former boy band member.

Lance, 36, who married boyfriend Michael Turchin last year, is not impressed with all the speculation about his love life that’s followed the interview.

In particular, he doesn’t seem to want people to believe that he was erm… “topped” by Andy.

Speaking on his Dirty Pop SiriusXM radio show on Thursday, Lance confirmed that the two had indeed “hooked up” a few years ago, but insisted that it never led to intercourse.

“Sex is a broad term…” he explained, “like ‘Andy banged Lance’ — when did he ever say that?”

Lance added: “Now it’s getting into who did who? I can just tell you right now, there was no Andy D going in my B.”

So, from what we can gather, the two did indeed get it on, but without penetration involved.

Either way, we say that qualifies as sex. And what’s with the “bottom-shaming” that Lance seems to be implying?

Watch Andy opening up to Sonja Morgan below…