I’ve heard it more than once but it doesn’t diminish how awesome it is to hear:

“Nobody has given oral that good before.”

Or some variation; it’s split between guys and girls so you can use your imagination for whatever combo fits. I’ve heard it a lot.

Wasn’t really words, not directly after sex.

She just had a smile on her lips and in her eyes that didn’t go away for nearly a week, to the point that she later called me, “complaining” that she had had to spend that week coming up with awkward dodges and PG-rated explanations to everyone asking her why she was now suddenly smiling by default all the time, seemingly unknowingly/unintentionally.

“How are you this good?” (in an utterly incredulous and somewhat delirious voice, and knowing that I’d been with comparatively few partners)

Still makes me smile every now and then.

“I passed out there for a second…”

You’re almost as good as my husband