Puck claims he will be help her to parent their child, but he cannot remain in a committed relationship with Quinn if she refuses to have sex with him; Quinn returns to her original plan of giving the baby to Terri, who is faking a pregnancy to hold on to Will.Rachel begins to suspect that Puck is the father of Quinn's baby and tells Finn.Quinn reconsiders her plan to have the baby adopted and gives Puck a chance to prove himself by helping her to babysit Terri Schuester's (Jessalyn Gilsig) three nephews.Puck impresses her, but Quinn later learns that he was sexting Santana mostly.Series creator Ryan Murphy was surprised by the positive fan response to their pairing, which he described as "strange and bizarre", explaining that he had believed fans would prefer Rachel to be with Finn.
The brief pairing of Puck with Rachel Berry (Lea Michele) in the episode "Mash-Up", spurred by his mother urging him to find a Jewish girlfriend, dissolves because he wants Quinn and she wants Finn.
Finn attacks Puck and confronts Quinn, who admits the truth.
Puck again offers to be with Quinn, but she declines and tells him she wants to be alone, though she moves in with Puck's family since her parents had kicked her out and she can no longer stay at Finn’s house.
Puck was developed by Glee creators Ryan Murphy, Brad Falchuk and Ian Brennan.
He is Finn's best friend and football teammate, who initially disapproves of Finn joining the New Directions glee club at the fictional William Mc Kinley High School in Lima, Ohio, where the show is set, but he eventually joins it himself.