I still love how she's the only one who calls him 'Sean'. So does he.
At the mention of 'green wings', Sean's eyebrows had something of an aerobic moment: Lift straight up in surprise... and furrow in some confusion. Hel didn't mention just how Quetzalcoatl had helped her make them go away. Not that it mattered.
What mattered was what came next.
The words 'fertility god' and 'near certainty' somehow seeped in through the information she was telling him. The expression in her eyes told him everything, and how well he understood. They had both come to terms with the fact that as long as they were together, children were not an option. This, however...
Sean somehow managed to find his brain again, and his heart felt like it leapt to the heavens. He lifted his hands and cupped Hel's face as his gaze fell into hers and his tongue attempted to find words. "Are you sure?" Those weren't great words, Sean. Try again. "I mean..." He kissed her forehead, then her nose. "There are few things I'd like more."