1) From your first comment,

"'sex-trafficked' and then rethink if these “lively women” were “having fun” or just surviving on a ship full of men that 100% CONTROLLED THEM"

So when you write, "sex trafficked" and "100% controlled" what other term would you propose rather than "sex slave?

2) terms aside, you still make quite an assumption there. Again, "it could very likely be true, but assuming that the women were sex slaves is a non-trivial assumption."