Unfortunately she does not really "show nipple" in that video the dress is really sheer as she claims. She's not wearing a bra and her nipples poke from behind the dress when she pulls it tight but you dont really see through it, like you wont see her areolas or anything and there's no nip slips in there either.
Vids not bad overall though. She should just focus on her massive ass and thighs as they are best assets but that may be just me not being much of a tits guy talking.