I might as well ride the Pirates hype boat like everyone else, and point out a scene from the original PotC movie which I believe went over most people's heads.
There is a part where Keira Knightley's and Johnny Depp's characters are stranded on an island. Thankfully for Keira, she has her favorite pirate by her side: Captain Morgan. They get drunk. Flash ahead to the morning, and Jack wakes up to Elizabeth burning all the rum. But something for sure happened inbetween there.
Jack Sparrow and Elizabeth Swann had sex.
Let's look at the evidence. One, he have a young drunk girl spending the night with Johnny Depp. Nothing more needs to be said there. Two, after they get rescued, Jack goes for one of his sarcastic remarks, and is immediately cut off by an angry Ms. Swann before he can finished his sentence. Finally, at the very end of the movie while Jack is running away, he turns to her and says "It never would have worked out between us anyway."
Read between the lines. This is the closest you will ever see to sex in a Disney movie. Well, until PotC 3 when Keira goes after Orlando Bloom. Man, she broke the hearts of every teenage girl in America. Twice.