no i don't think you're weird, the same idea/fantasy turns me on too.
i think for me the appeal is from a couple things -
1. being able to basically watch 'live' porn right in my bed, with my sexy bf as the star
2. harder to explain but perhaps you will understand anyway
-
there is a part of me i think that would be uncomfortable with it, but the very act of challenging that part of me, overcoming it, and being able to be *that* sexually comfortable i think would be very cool. i can (and have many many times) fantasize about how it would be to just be there watching, listening...but just leaving the two of them alone to fully enjoy themselves...(plus to be that giving, unselfish, is also a turn-on)...
does this make sense? i can elaborate more, or perhaps one of you lovely ladies knows what i mean?
great topic, thanks for posting it