Though she knew she'd likely turn heads- or, at least, she thought she would, being as vain as she was, she couldn't help but blush a bit at his comment. She gave him a playful, flirty shove. "You're a sweetheart, Ernie," she cooed, feeling just as bubbly as her champagne.
She hadn't noticed his stolen glances at her shoulders or skin, and had she, she might not have thought anything of it. She thought she was pretty, and she would have figured he was ogling.
On any other day, however...
She tilted her head at him, giving the faintest of giggles as she, once having set her glass down, wrapped her arms around him in a hug. "Wingman? Don't be silly! You're my date tonight." She might've brought up the fact that she wanted a dance with Dean and Seamus, though the latter was being... well, rude, and she'd cross the former bridge when it came to that. She wouldn't doubt it if he'd want a dance with one of his former Hufflepuffs, too.
"Do you suppose anybody is going to get sloshed?" she asked, a bit off-subject as she noticed a group downing glasses simultaneously. Waving her hand dismissively, she shrugged. "Either way... I'm glad we decided on purple. You look lovely in it. Really, you do."