Tensions escalate when Hayley and Sharon clash with the Raffertys in McCoy's in Thursday's Fair City on RTÉ One and the RTÉ Player.
James points to the pregnant Hayley and says: "She's going around telling everyone that that's my kid in there."
"Legal advice? For what?" says Sharon.
"You trying to play my family twice?" says Rafferty. "Faking a pregnancy - what kind of a twisted sicko does that?"
"You're the sicko," replies Sharon. "Now back off!"
Fans can find out what happens next on Thursday on RTÉ One and the RTÉ Player at 8:30pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, Thursdays, and Fridays.
