The Weatherfield actress originally called up Manchester radio station Capital FM to deny a rumour that she was seen dating Mark Wright in the Salford town of Irlam.
The Tina McIntyre star, who split with Max George in July, is quoted as saying: "I am ringing in because this rumour is wrong.
"Everyone knows everyone in Irlam and I never went into Tesco or the buttie shop with Mark - and he's never been in my car. I want to stop this rumour before it goes any further."
Then, Keegan went on to reveal that friend Brooke Vincent (Sophie Webster) had stayed at her flat for the night, before confirming that the pair would be living together in the near future.
Keegan recently outlined her desire to find the "right guy" following her break-up with George.
New! Digital Spy breakfast show - watch Alex Fletcher discuss the day's biggest stories including the Rooneys' baby joy, Cheryl Cole's long-awaited autobiography, what's next on Doctor Who and more: