If they have to change positions, Aziraphale won't complain, but he's delighted that Crowley is giving it a go like this, both of them wrapped up in each other. He leaves a trail of kisses along Crowley's neck as encouragement, shifting his rear slightly so that Crowley can do... well, whatever it is he needs to do. Aziraphale has a vague idea of the mechanics, but more importantly, he trusts Crowley to handle him properly and with care.

He makes a soft, almost questioning sound when Crowley finally makes contact. Having never touched himself there, he's surprised by how it feels. "Oh... that's different... not in a bad way, though." He breathes the last as quick reassurance, not wanting Crowley to stop. "Yes, it's all right."