Their marriage is going swell until Bill decides to burn down the Spectra building, to build a skyscraper in its place. Unbeknownst to Bill, Liam and his new friend, Sally Spectra, were still in the building. Liam and Sally shared a kiss, thinking they were going to die. Steffy has been empathetic towards Bill after everyone turned against him. Liam decides to be honest and tells Steffy, upsetting her. Steffy leaves for the guest house, where Bill accompanies her, only to comfort and seduce her. Steffy realizes she's pregnant and has a paternity test to find out Liam's the father. Liam is thrilled to find out the news but discovers the paternity test laying around. Steffy explains what happens and Liam is infuriated with both Bill and Steffy. He tries to divorces her, but tells Steffy he'll be around for the baby. Steffy's arch rival Hope Logan (Annika Noelle) returns to L.A and confronts her about her affair with Bill. Hope helps Steffy to try to win Liam back by being a confidant to him and her.