Hey Yuanyangren
I couldn't agree more, it takes too people to end up in bed.
So even if there would be the horniest guy on earth, trying to get inside the pants of a girl that just doesn't want sex, I am sure nothing would happen.
So let's say any girl that ever says: "That guy took advantage of me, he promised....", tried to take as much advantage of the guy, as he did, she just got less. But if their expectations don't meet it's a lack of communication.
We are all into this for some payback: hormones, money, physical attractions, fun, addiction, plain horniness, finding our soulmate, you name it.
If it goes bad stop blaming it on either gender. If he wouldn't take advantage, she would, or you get (un/)lucky and one or both fall in love.
So, if you don't want to have sex, just don't do it.
If you expect something from sex (or after), other than the satisfactions of your physical needs, you are the idiot.
Sex isn't designed for love and payig bills, or a promise of an eternal love. It's designed for pleasure and procreation, not for BS.
It's as easy as that.
ps. "Thanks God!...for inventing 'IT' ".