The thrill of opposite

I would like to know if the following belief of mine is actually true:

   Through the past few years I've noticed something about us humans.  That people seem to be the complete opposite of their everyday persona when in the bedroom... am I mistaken?
I'm usually perceived by others as secure, in control, etc. etc. and I must admit I do have certain control-freak issues...  but in the bedroom I like the man to be in charge, almost like the little catholic schoolgirl in me resurfaces and (on the most part)  I like to follow the lead.  Lately, my husband has been slightly aggressive (would it be improper to share that I've had my panties torn off?) and I'm as in love afterwards as I've never been... I just want to wait on him, dote on him and basically act like a schoolgirl in love.  I've also known women who seem very proper and demure in public, but turn into total sluts in bed. 

So what is it about sex that makes us act completely out of character?  Not only do we act that way, we enjoy, look forward to, and welcome the changes.  Are these changes what we really wish we were like, or some other, complicated, psychological thing I don't even want to get into?

This all has been a problem for me in the past, as some men I've dated assumed I would be an animal in bed, but found it to be completely the opposite, after the long wait to even get me there in the first place.  A couple of guys even assumed I'd been with women as well...  which couldn't be further from the truth (although sometimes I wished I had so the playing field would have been wider...)  And if it's true, what one sees in the movies and TV, that the S&M clubs are frequented by executives and powerful men... this would really prove my theory right.

Regardless, although I enjoy getting freaky, there have been only two men in my life who have made me want to be the attacker as well as the attacked...

...and I married both of them.