There's some uncomfortable viewing coming up on Fair City when Phoebe blurts out Mairead and Will's secret in front of Damien, take a sneak peek at the drama here.
In Sunday night's episode, Mairead tries to get Phoebe on side as things have become toxic between her and Will during their separation.
"I know that your father is feeling a bit threatened by the separation and I think that he's stirring things and I think that you're falling for it," Mairead claims.
"So suddenly dad's a bad guy?", Phoebe shoots back.
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"Yes, in this instance he is", Mairead responds. "I'm surprised at you being so naive Phoebe."
Upon hearing their raised voices, Damien enters the room and pleads with them to stop arguing.
Mairead apologises, saying: "Damien I'm sorry about the noise. I'm trying to persuade a teenager here that she doesn't know everything."
A furious Phoebe fires back: "Well I know one thing he doesn't. I know you kissed dad."
Mairead and Damien are left reeling by Phoebe's disclosure...
Fans can find out what happens next on Sunday on RTÉ One at 8:00pm.
Fair City airs on RTÉ One on Sundays and Tuesdays to Thursdays.