How do they expect it to play out?
BB: You're being called to the DR because you have broken the rule of no fake romances.
Lisa and Sophie: But we're real!
BB: No... you're not.
Lisa and Sophie: LOOK WE ARE *controversial headline-grabbing lesbian kiss* WE ARE!
BB: No you're not! It's against the rules.
Lisa and Sophie: We're real.
BB: ...
Cos BB can't prove it's fake to show it's against the rules, so it's a pointless rule anyway.
(Btw, Sophie and Lisa were just example HMs for humour),