"I'm not overprotective," James objected. "If anything I'm..." But he trailed off, realising where the conversation was going with a quick glance towards Lily.
For a moment he was worried. He didn't want Harry to think they were replacing him, or anything similarly bonkers. But thankfully the other Potter seemed to have cottoned on pretty quickly and was grinning. James relaxed, his hand finding Lily's where it rested on his leg.
"You sure?" He asked him. "I can't think of a better time for a 'birds and the bees' conversation, myself..." But he gave Harry a wide, bright grin and slung a proud arm around Lily anyway. The smile only faded a fraction at the thought of Lily's work and trolls falling out of the sky - he didn't want to dwell on all that right now. At least, hopefully, he might he able to get Harry on side when it came to his really-quite-appropriate level of protectiveness.
"We'll figure something out," he agreed. "But yeah. Due early next year, we reckon, so it's early days. But like your mum said, we wanted you to know first." James quirked an eyebrow at them both, the boyish grin inching back. "Obviously, it's a slightly bigger age gap than originally planned..."