Fooled into Bed with My Sister

[neerathemall]

I circled and zigzagged through the blouses, bras and panties on display.
"Hey," I answered when I reached her. "You guys about done?"
"Mmm, pretty much," she said, cocking her head as if to consider whether that was actually true. "Your sister is still trying out some stuff here though."
She paused, and looked at me with a mischievous smile on her lips.
"What?" I asked.
"I was just thinking, maybe you could help? She was having trouble deciding."
"I guess," I conceded, willing to do anything to speed the process up.
"This way," she said, taking my hand and pulling me toward the dressing rooms.
We passed a few other shoppers on our way there. Mainly women, and the occasional bored husband. The dressing rooms were mostly unoccupied.
"Hey, you ready for me in there?" Melissa said, talking to one of the closed dbangs.
"Uh, yeah. Come in," my sister called back from inside.
Before I could say anything she pulled back the side of the dbang. I was pushed inside ahead of her and she followed behind me.
The room got pretty crowded with the three of us in there, but there was still enough space between us for me to get a good look at my sister. My mostly naked sister. No one had told me she was trying on underwear. Or lingerie, I should say.Sexy lingerie.
She looked... beautiful. Way better than I would have thought. Her blonde hair was pulled back in a knot, with a few curling locks still hanging down to her shoulders. The dark, lacy fabric of the panties left little to the imagination and the bra put her breasts delightfully on display. When had my little sister gotten so hot?
The shriek pulled me out of my stunned admiration of her.
"Aaah! What the hell?!" she shouted, covering up herself with her arms. It didn't work very well.
Melissa giggled behind me, obviously amused.
"I, uh..." I tried, failing to explain myself.
"Get out!" she yelled.
Oh, right, I thought, as if it hadn't been the most obvious solution in the world.
I stepped outside, with Melissa laughing behind me. A middle aged lady gave me a funny look as I stood there, unsure what I should do.
"I'm sorry..." I said, carefully not looking back. "I didn't know, Sis."
Anna sighed from inside, loud enough to be heard over Melissa's lingering laughter. "Yeah. I figured."
A muffled thud was heard from inside, followed by Melissa's voice. "Ow! Oh, come on. That was funny. You said you needed advice, didn't you? Well... I got you a guy's perspective."
"Ugh, you're such an asshole sometimes..." Anna responded.
"But you still love me," she stated.
Anna grunted in frustration, but didn't disagree with her.
"So? Aren't you going to ask him what he thought? The damage is already done, after all," Melissa urged her. "Iknow you care what he thinks."
"Oh, shut up already..." Anna responded. She paused, seeming to consider it, which surprised me.
"Hey, Sam? What did you think? Be honest," Melissa said to me.
"Uh... really?" I said.
"Well... you might as well," my sister conceded.