Paulie and Juno have unprotected sex and Juno ends up pregnant with her first child in the beginning of the movie. He is really sensitive and moral. This is proven when he explains how she broke his heart after Juno learns that he asked another girl to prom. Before going into labor, Juno admits that she loves him. (He looks at her face rather, like everyone else, her stomach, is really cool, etc.) At the end of the movie he and Juno are seen giving their son up to Vanessa Loring. They were also playing their guitars and singing "Anyone Else But You" by the Moldy Peaches.