EastEnders aired a sweet moment of bonding for Sharon Watts and her secret brother Zack Hudson on Thursday night.
But some BBC soap viewers are predicting drama ahead, despite Zack's eagerness to get to know his sibling.
The pair finally got talking in the latest visit to the Square, and Sharon asked him to stay with her after their recent meeting.
Sharon had initially accused Zack of being like their father and told him to stay away, but she soon came around.
Viewers were loving the scenes between the pair, sensing there could be a strong sibling relationship to come.
Others were excited to see what the soap had in store for them, especially Zack, as they loved the idea of the siblings being close.
Taking to Twitter, one fan wrote: "Zack and Sharon are a bit cute."
Another agreed: "looking forward to Sharon and Zack brother and sister relationship."
A third added: "Loving the Zack and Sharon bond."
But some viewers believed there was more to his arrival, and that he wasn't that different to his late villainous father after all.
After learning Gavin had not given him money in his will and instead saved old drawings and cards from his childhood, Zack lost it.
Sharon was shocked as Zack lashed out with rage, furious his father had not left him what he said he was owed.
Zack told his sister he was nothing like Gavin, but some viewers questioned if he could have a darker side to him.
One viewer wrote on Twitter : "Don’t trust this Zack."
Another tweeted: "Already seeing Zack’s rage side."
A third said: "#EastEnders Zac starting as he means to go on #villain."
EastEnders airs Mondays and Fridays at 8pm, and Tuesdays and Thursdays at 7:30pm on BBC One.
