I don't know about an awkward moment, but I do know one cute moment that still makes me giggle and was incredibly sexy.
I had a new hat on, sort of a beret type deal, when I visited my bf of the time. We were sitting on his bed, obviously headed towards steamier things, but still fully dressed. He looked at my hat and said with a goofy grin on his face, "Nice hat" and pulled it off, leaning down to kiss me!! I know, I'm so weird XD. It felt like an un-said: "Nice hat, let's see how it looks on my floor next to your underwear?"
AWKWARD is when an ex-friend walks in on you and the bf during a blow job. We managed to cover everything in time, but this fool of a guy decided he needed to lean over and HUG me. It's like... MOOD SPOILER. This ex-friend was gross, never showered, etc. We had taken him in to let him get on his feet and then kicked him out three months later because he refused to get a job, never showered, and made dozens of false suicide threats. So this was his appearance after we'd kicked him out and he was collecting his things.