I live by the motto don't knock it till you've tried it.
I've plugged. It was good, but it was a lot of messing around. A friend of mine said the most erotic thing he has ever done was plugged his girlfriend.
Funny story about my plugging.
We had a line of x to get the party started and after a few minutes we were zooming around talking at a million miles an hour, if you know what I mean. So I decide it's time to do the deed. Go into my friends room, rip open the condom, lube her up, drop my pants, squat down and start inserting. Then my plugging buddy for the night, who was also talking at a million miles an hour, walks into the room and we start casually having a conversation like nothing is out of the ordinary. I stand up, zip up and we walk back out. Then about 10mins later we both kinda realised that we had a conversation when I had my finger up my butt, and we both just start laughing.