"I'm going to have hurt you if you keep fucking with my hair though," Sirius teased quietly, swatting at James' hands.
Sirius couldn't say that he'd been overly fond of the majority of the pensieve memories. But he'd been grateful that his own memories weren't readily available. Part of him felt bad for the people who had their worlds on display -- the games people and the cure people, who suddenly had to explain to everyone all the awful dark components that comprised their world.
And in the end, even if he had seen all those awful things, seen the things that other Siriuses had to go through, he was so grateful for the opportunity to see Celeste being born. It still made his throat tighten a little bit to think of how Remus had slipped her so gently into his arms (she was so small) and told him that they were both daddies.
"That is weird," Sirius agreed readily. He didn't know if he could have done such a thing. He didn't want anything to do with any Snapes from any worlds.