Lauren Branning could be badly betrayed by her younger sister Abi on EastEnders next week.
Lauren (Jacqueline Jossa) recently confided in Abi after having an abortion in secret, but her honesty could be a decision she lives to regret if her sibling's devious side re-emerges.
Next week's episodes see Abi (Lorna Fitzgerald) left feeling like she's constantly living in the shadow of her "perfect" sister, but she knows that she has exactly the ammunition she needs to shatter that illusion.
When Abi sees that Steven (Aaron Sidwell) is also questioning Lauren's loyalty, she sees this as an obvious opportunity she can exploit, even though Lauren has already begged her not to tell him about the abortion.
Will Abi go against her sister's wishes by exposing the truth regardless?
Abi Branning glares at Steven Beale in EastEnders
© BBC
EastEnders airs these scenes on Tuesday, June 20 at 7.30pm on BBC One.
Digital Spy