The first part of this question is a bit subjective. I cannot speak for ALL men and women. I personally would not say anything to become sexually active with someone, and nor will my fiance (actually that's why I fell in love with him.)
If someone hypothetically would say anything (I am assuming this encompasses lying, or saying things that are out of character for you) to get someone in bed, I would not want to be in a 'serious' relationship with them.
I have been in a friendship with a man where there was a tremendous amount of sexual tension, and we often times acted upon that, but it wasn't a serious relationship. We were able to be sexually active and also friends by not spending every waking moment with the other person and keeping it casual. Sorry I can't add more insight to this answer!