Just three days into the series it seems to have all got a bit much for one of the pair, who are considered to be one housemate.
Victoria sobbed in the bathroom yesterday: "It's just like... quite a different thing to do isn't it like?"
"It's crazy," sister Emma agreed.
Victoria continued to cry: "If you're used to just going out and like talking to trees, but there's no trees here or any plants.
"It's just really making me panic a bit.
"Everything's fake and like all the crazy energy from all the electricity and the lights and stuff."
She went on: "It's just like, I really want to..." before breaking down in tears.
After a pep talk from Emma, Victoria wiped her face and returned to the main house.
"That was a couple of days coming," she admitted.
Big Brother 2016 continues nightly on Channel 5.