Sabina has the facility to look either 25 or 45 depending on the angle of her photos
what kind of role is having Oliver in the house? does he host the tasks or something or is he only there to be the eye candy?
With her her loose she looks quite young but with her hair up she looks stuck up and older.
Oliver narrates the daily show and give insight analysis during it. In the house, he behave like an housemate who just happen to be in contact with the production and he also "host" some few little things. For exemple when there is a party, he is called to the DR and told what to do to live it up.
He's mostly there to for media attention and to have some kind of inside control over the housemates: which tbh is a quite good idea.