Oh yeah -- it can DEFINITELY fall out during intercourse. My boyfriend and I called it "ring-around-the-penis."

oh yes, i experienced this. there is nothing sexy about looking down and finding yourself "tagged." Talk about a WTF moment.

This seems to be a common problem. Some of my girlfriends call it "The Accidental Cock Ring".

If this bugs you, you can take the ring out before intercourse--as long as you remember to reinsert it afterwards. You can keep it out for up to three hours.

I tried the NuvaRing, but it kept on slipping out during the third week of my cycle. I switched to something else.