Here are the relevant references from the Books where Chest is mentioned.
I make no pronouncements on these matters, but report them as I find them.
Arrive at your own conclusions.
I wish you well,
Drawing her knees up and almost touching her chin to her chest she managed to look about as abject and abused as a poor wench might.
Her arms were crossed insolently upon her chest.
So, it seems, she was neither excessively buxom, nor, neither, tall, linear, flat-chested and boyish, a variety often praised and recommended for imitation in cultures which encourage the denial or blurring of sexual differences.