I had a dream I had sex with my ex's brother. Im not attracted to him, though he is handsome. Well actually We never had sex, he was kind of trying, and I never had the intention on doing it, and I said ' do you really want to do something that you cant take back?" i remember for a second being afraid he would get upset and possibly hurt me physically. He was dissapointed, and then i think he left. By the way, not only is he my ex's brother , but he is also the president of the comany I work for.

It sounds to me that you may still have some feelings for your ex, that are just buried deep enough to where, to where, you might not even realize it, consiously, that is....
You could find a way to finally let the buried feelings go.. and that should help you with this type of dream..
Or it could possibly something you ate or drank that night...believe it or not.. sometimes, things we eat can effect the brain's thought process, while sleeping..disrupt it, if you will.... then your dreams can get scrambled... so then instead of dreaming about having sex with someone you desire... it got scrambled with another thought that you had in you head...
For me, it's chocolate... If I eat chocolate before bed, my dreams are soooo bizarr! that I keep waking up...so I just try not to eat goodies before bed... and that seems to do it...
Have a great weekend!! and a Happy Valentines Day..

Usually sex in dreams has little to do with sex in waking life, it may on rare occasions if it's been a very long time since you had sex with someone, but it rarely means that you have sexual feelings towards a person if you dream about them that way.

Sex in dreams is often about power and control, , empowerment and virility etc. I think because he is the boss that this may be the case here.