A quick peruse on YouTube will reveal that some users have highlighted their upload of the Assassin's Creed IV: Black Flag reveal trailer with a thumbnail that really accentuates the ASS in Assassin.

To explain some of the naked ladies seen in the reveal trailer, lead scriptwriter Darby McDevitt has revealed in an interview with Polygon that the main protagonist, Kenway, will try his best to stay true to his family whilst still having his way with countless women throughout the game:

Edward Kenway is a raucous and bawdy chap, but he's also a married man, and one of his primary motivations in Assassin's Creed 4: Black Flag is to get rich and prove himself a ‘man of quality' to his family and betters. So there is a special woman in Edward's life, but there are also other not-so-special women as well."

While the scene [of Kenway with two women] in the reveal trailer was clearly [a] designed hint at the pirate lifestyle, there is a gameplay element here, to show that you can use certain NPC characters to more effectively achieve your goals. You might have noticed that the woman in the foreground seduced his target at the end of the trailer (eagle-eyed fans have already pointed out that they are the same woman)."

Well, I guess its staying true to the mythos of a pirate’s lifestyle and will make an interesting (and probably awkward due to “sexy pixels and polygons” not being real n’ all) game dynamic – Rum, treasure and debauchery …oh and don’t forget punching sharks in the face!