in early 2009, elizabeth is poisoned by a biotoxin and lucky stays by her bedside. he is upset to learn in june that ethan lovett (nathan parsons) is his half brother. when lucky dates rebecca shaw (natalia livingston), nikolas kisses elizabeth to make them jealous, prompting lucky and elizabeth to get back together. elizabeth is attracted to nikolas, and sleeps with him the night she accepts lucky's proposal. meanwhile, lucky (reprised by jackson) works with dante falconeri (dominic zamprogna) to investigate franco (james franco). in early 2010, lucky finds nikolas and elizabeth having sex and eventually berates them. they learn she is pregnant, and helena cassadine changes the dna test to show nikolas as the father. in july, elizabeth gives birth to aiden, who is kidnapped by franco until lucky finds him. lucky is approached by interpol to pose as irish hitman ronan o'reilly and identify "the balkan" (daniel benzali). lucky brings siobhan mckenna (erin chambers) home for safety, and asks her to marry him so she can get a green card. in march 2011, elizabeth finds out lucky is aiden's father, but keeps it a secret after jake is killed in a hit-and-run accident. lucky helps convince elizabeth to donate jake's kidney to josslyn jacks. he finds out luke hit jake and accuses him of drunk driving, staging an unsuccessful intervention. lucky burns down the old spencer house, accidentally injuring siobhan. to stop him from drinking, elizabeth tells lucky that aiden is his son. nikolas briefly plans to take aiden out of the country before returning him and leaving town. lucky volunteers for an undercover drug case during which anthony zacchara (bruce weitz) has him injected with drugs. elizabeth finds lucky but gets in a car accident that puts siobhan in the hospital on her way to get him medication. anthony kills siobhan and lucky uses pills when he finds her dead. he struggles to overcome his addiction. elizabeth tries to reconcile but lucky goes to ireland. he receives a mysterious message that aiden is hurt just in time to get him to the hospital. elizabeth fakes a breakdown to get lucky's attention, and when lucky finds out the truth he goes back to ireland. he recognizes someone, later revealed to be his mother laura. in 2013, ethan reveals that lucky is in africa, doing volunteer work.