“You may now kiss the bride,” Dumbledore said, and James kissed his bride.

Later, at the reception, after the couple had cut their cake and fed each other a piece, Sirius walked up to James.
“Hey James, open your mouth,” he said, mischievously.
James opened his mouth, which was soon completely full of something.

He chewed it. It was pleasant.
“What is it? Cake?” It wasn’t his cake; Lily had chosen strawberry cheesecake. This was… chocolate sponge.
“I hate strawberry cheesecake, so I made a chocolate sponge. Here, feed me some,” he said, howling with laughter, handing James a piece.