Oh go for it, you might find the constant pressure on your sphincter and prostate have you really turned on by the end of the night. Just out of curiosity, was it a man or a woman that suggested it?

Go for it-chances are that you'll both enjoy it! If you're already familiar with anal play and feel comfortable wearing a butt-plug for a few hours, it should be no problem. Your girlfriend, on the other hand, will be pleased knowing that she's in control. (I'm guessing that she's a bit on the Domme-side in the bedroom? After all, being penetrated "down there," especially as a man, is a very submissive act in general.) Its not weird at all! Several people have wear butt-plugs in public. ...Alright, well its obviously a very small minority of the general public, but definitely more than you think. Wearing a butt-plug in public is great since they're discreet and can go anywhere you go (well, use judgment if you're going to a nude beach lol). ^Besides, who cares if its weird at first. It'll just be you two who know your dirty little secret. If you are going to be wearing a butt-plug out in public you should take a few precautions. Don't wear something too big and don't chance it with a plug that's too small (slippage issues!!!). Always insert a butt-plug with plenty of lube, especially for extended wear in public. Hope you have fun! (or if you already did this, you did* have fun) Wearing a butt-plug in public for someone can be extremely hot and more than likely will result in some hot sex at the night's end ;P

Do it. It's very hot. As somebody noted above, use lube. However, don't use too much, and don't do it if you're feeling ...um... gassy. My S/O once sent me to the grocery store with a plug in and I thought I was going to launch that thing down my pants leg like a mortar shell.