[... Well, he made the offer so clearly they're cool now. He's being offered food and everything.]
Yeah! Oh, wow, that smells so good!
[He's in heaven. This is the Bakery Equal To Heaven. Goku eagerly takes the plate and opens his mouth wide and you know maybe Sebastian blinks. Just to keep up human-like appearances. There's a snarfing sound and then in two bites the cake is gone and Goku is licking chocolate off his lips blissfully.]