Wayne is shocked when Orla tells Tommy her plan, take a sneak peek at the next episode from Carrigstown here.
Coming up in Wednesday night's Fair City, Orla worries when IVF is only an option with an unknown donor or a partner, but decides there's only one way to proceed.
"I need to have another baby, Orla tearfully tells Tommy, but Wayne walks in on their conversation.
Wayne is irate, saying: "You're asking him without talking to me? After everything we said last night?"
Tommy is confused, asking Orla: "Hang on, what do you mean you need another baby?"
"She means with you," Wayne explains. "IVF. So it'd be a genetic match for Junior so we can save him."
Orla drops the bombshell: "It's not that simple. I'd need Tommy to pretend to be my partner."
Wayne and Tommy look on in shock...
Fair City fans can find out what happens next on RTÉ One on Wednesday at 8:00pm.