But has she finally met her match?
Sly Sienna is back to her old tricks when she spikes Summer’s drink.
As Summer passes out, this gives Sienna time alone with Brody, but she has no idea who she is messing with and it looks like she has met her match.
When Liberty finds out what happened, she decides it's time to move out. And later, as the walls close in on Sienna, she is in for a shock when she tries to tell Brody the truth.
With Sienna at rock bottom, Sally overhears what she did to Summer and suspends her from school. But just when all hope is lost, Summer has a change of heart and in a surprising turn of events, goes out of her way to help her.
Hollyoaks continues Mondays - Fridays at 6.30pm on Channel 4