I pissed off my witch sister

Monica stared down at the bed. Laid out was a full outfit for a spring day at her private school. They were even in her preferred colors. A black zip up sweater with the school logo, black and purple plaid skirt, black button up blouse, black lace bra and thong. She wouldn't be wearing a full outfit though. Her sister's instructions were clear. She could choose two things on the bed and no more. If she took too long then she would be dressing her.

She didn't doubt that making her sister choose wouldn't end well. In the past couple of months, she had learned not to keep her sister waiting for any reason. Ever since Monica had ratted out her party plans to her parents, Aurora had been on a rampage.

If only Monica had known that it was some super special coven event and to miss it meant missing a means of adding to her power. Oh yeah... her new sister was a witch, she didn't use a wand or broom but she had spells. Spells that she'd used to expose Monica's body to any amount of people in the last couple of months.

Shaking herself out of her daydreaming, Monica quickly put the bra aside. Their presence was just a taunt. Though Monica had a pretty big ass for a pale white girl, her B cup tits were perky enough to go without a bra. But it had been days since she had been allowed panties. It was tempting, but that would only leave her with one article of clothing. She discarded the panties too.

She was left with the top, sweater and skirt. Which would be the safest bet?