"Like this." Crowley got one of the sticks out of the box and put it into his mouth, then gestured to Aziraphale so he'd come closer. Talking like this was difficult, but he tried his best. "Eat from the other side!"

Hey, he wanted to get a bit of affection and kissing in. Aziraphale looked as if he could use it, but it could be difficult to persuade him. Crowley imagined that when there was chocolate to go alongside it, he'd be too preoccupied with enjoyment to feel all the guilt come crushing down until later.