It's about the reaction Jake expected. He wasn't hurt by it, per se, it was not far off from his initial shock while investigating their parent's old office. But it did hurt. A sympathetic kind of hurt he wishes didn't have to be so complicated.

"Heh, I wish, bro." He scoots a little closer, making eye contact in the hopes it would help this sink in cleaner. "Mom and Dad gave birth to us at the same time, in the alley behind their office. I'm still your big brother. I just... Came outta Dad, and you came outta Mom."

Something about saying it out loud made the what the fuck alarm go off so loud and piercing in Jake's head, he could barely see straight for a few moments. He could only imagine what Jermaine was thinking.

"It's why I can stretch." He offers, as a sort of...grounding measure. It was something about him that Jermaine was so used to, something real and tangible for him. It was what made this whole thing go down easier for Jake, maybe it would do the same for his brother. "Warren could too."