Pardon me for being a wet blanket or a killjoy but...how did Angel Locsin get so...pudgy? She didn't look like that when she was still with GMA-7.
Its just a role. The versatility or greatness of an actor or an actress is shown in the way he/she projects the character he/she is portraying. If he/she truly evokes a "puta" or a "bad ass" and he/she becomes so believable in the portrayal, it only means that the actor has matured to understand and empathize with the various nuances of a character. If Ms. Angel becomes so believable as a "whore" in the film, kudos to her acting. It only means she now understands the whole breadth of the human experience. That is, if she was indeed the real person acting that character in that particular scene. For all we know, a double may have acted on that scene with Mr. Charr Lynn.