Not seen her, but IME Portuguese often means Brazilian.
HoD used to have a 'transparency' policy where they verified the nationality as well as the correct age of their girls, but that appears to have fallen by the wayside now, so it's anybody's guess really.
They have a number of girls on their books at the related establishments in MK claiming various mediterranean nationalities...Italian, Spanish, French, etc...I know for sure that most of these are Romanian. Not necessarily a bad thing, as I've met quite a number of them and they are very nice Romanian ladies, but there is a negative stereotype that they want to avoid.