I swear she only chose her sister for most genuine? She kept saying her name for all the good stuff by default but that was as a joke to annoy Tom it seemed
The only time I saw her not give him a say was when she ran off with the clipboard to the bathroom and made all the questions about her (

) but not Tom. Tom clearly got his own questions though, so they clearly compromised
Neither of them realised that they never mentioned Chanelle or Ellie, clearly making it obvious there was some bias towards Tom and Hannah. The housemates seeme ti have acknowledge Chanelle and Elliebwere big personalities the public would've liked, so two housemates who they must therefore think are smaller characters having all questions about them must be suspicious surely
I don't think any of them caught on anyway