They definitely walked that line together. Happily so. When there was a big, terrifying world out there, one that had gotten exponentially bigger with issues like mutants and wars being thrown at them? David couldn't possibly imagine trying to cope it it all alone -- he also couldn't imagine trying to cope with it all pretending like he was a well-balanced adult who both comprehended and accepted all the cards he'd been dealt with. Even during the calm times it was a big ask.
Weird though it was, seeing himself while receiving affection, David was quick and happy to accept and understand that this was Syd -- this was the bright and amazing soul he loved. This was her power and whatever it took to help her understand it more and master it? He would do. Which meant that this would likely happen again, under more controlled circumstances. Eventually he'd get more used to seeing his mug like this, but hey, if it meant touching Syd? Sharing this? It'd been nice on his own, a form of connection they didn't have at Clockworks. Now? Shared.
The kiss was returned, a smile on the lips at the sweetness of it all. "Apart from feeling up your bod?" David teased, referring to the time when he admitted to doing that once before. He didn't though. This? This was really all he needed. The time shared, time spent, was more than enough. "I'm good for now. Let's give this a go, just you and me." Focused, relaxed, easy.
Shifting so they were properly facing one another, offering hands as a point of contact so, if the switch did work, there would be as little discomfort as possible elsewhere. "Remember," he said after a moment, another smirk on his face. "You got four of us taking care of any extra powers, all of us cheering you on. A legion of support." And love, of course. Always love.