Hollyoaks spoilers follow from Friday's episode on Channel 4 streaming, which doesn't air on E4 until Monday.
Hollyoaks has seen Frankie Osborne make a shock allegation against Jack, accusing him of touching her inappropriately.
Following the shock arrival of Suzanne Ashworth alongside her and Darren's teenage twins Frankie and Jack Jr earlier this year, things have been rocky for the Osbornes as the two families attempt to merge together.
The cramped living situation hit boiling point this week when Frankie slapped her stepmother Nancy during an argument, leaving a torn Darren at a loss as to how to move forward with his daughter.
Tonight's first look episode (February 16) saw the teenager make the accusation that her granddad Jack had touched her while the pair were dancing together.
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Furious about Frankie's behaviour, Nancy refused to forgive her husband for not sticking up for her – leading to Jack suggesting that Darren's reluctance to confront his daughter was because he was "scared of losing her".
After taking on board Jack's advice, Nancy was ultimately able reach a truce with her stepdaughter after apologising for shouting at her the previous day.
Meanwhile at the Osborne house, Frankie returned to find Jack drinking and reminiscing about his late wife (who Frankie is named after) telling the teenager that he hopes she can one day find love "like the one we had".
Curious Frankie continued to ask questions about her namesake, with Jack playing her one of his late wife's favourite Cher records and pulling her into an embrace to dance.
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However, as the pair moved around the room together, Jack placed his hand onto Frankie's lower back – with the camera cutting back to the teenager to show her facial expression suddenly changing.
Later on, Nancy was shocked to discover Frankie sat alone on the floor in tears, with the teenager responding that Jack had touched her inappropriately earlier in the day.
While viewers didn't see whether or not Jack did touch the teenager inappropriately, the fallout will see Suzanne open up to Darren about Frankie's past as the family begin to question what exactly happened between the pair.
Hollyoaks streams first online via Channel 4 each weekday at 7.30pm. Episodes then air on E4 the following day, before getting their YouTube premiere a week after that.
Selected omnibus episodes are available via Prime Video.
