I'm still attracted to my best friend
Why do you think that you are attracted to them?
Well i really want to sleep with him.
Friends can often spend so much time together that an attraction can form, but its risky to turn a friendship into a romance. You could possibly damage your friendship if things don't end up working out.
Why would I ruin a friendship by turning it into a romance?
Well sometimes it can be worth it. Either way, just be careful with trying to make a friendship more than just friends. If the relationship doesn't work out it may lead to an ended friendship.