[ South leans a little towards the fingers in her hair, makes a thoughtful 'hmm' noise as she seriously considers the answer to that. ]

...pretty sensitive, maybe? When someone's being rough with me I like a good yank on my hair, if that says anything.

[ Her hand never truly stops moving, shifting between kneading and squeezing. Then, question answered, she flicks her tongue out against the untouched breast's nipple before wrapping her lips around it. ]