There's a moment of shock that reverberates down the bond, then a more cautious feeling out of things. This is Sam, after all, and it's not like he's completely unused to this sort of thing.

Just...never from a bond outside of himself, that's all.

He takes a shuddering breath, letting it out slowly as he raises his head to look at Gabriel. You can talk, he manages down the bond. Or think or...whatever. Not entirely unused to this, you know.