While opening a surprise package had all the hallmarks of Christmas or a birthday, this package was neither. The insidious promotion campaign wasn't in the goodwill of either of those events. As per the strict instructions, Kristina read the words on the card aloud as she lifted it off the tissue paper.<br/><br/><span class="fixed-color" style="color:rgb(184, 49, 47)">"Color me red?"</span>She asked more than read aloud before setting the card on the table with the other documents that she had received. "That'd be right, red isn't my color..." she continued speaking to herself as her unconscious mind made an association with the color red and the emotion of lust. Then, she lifted the flap of tissue paper away to reveal the very small, silk bra. "Oh," she exclaimed softly as she looked at the small, sexy garment. Kristina had never worn anything like that, and as she moved it to the side of the box to open the next layer of tissue to reveal the bottoms she had to look at her hands to see just what she was feeling. The silk was so light and soft that it felt like a breeze under her touch.<br/><br/>Kristina's mind made a prediction of what the panties would look like after seeing the bra. Small panties of the same fabric, probably with shoestring straps at the side were what she expected to see, but it was quickly apparent that she was wrong. "A thong," she half whined then picked up the garment and her eyes went wide as the opening in the crotch did what an opening does best, it opened. Kristina dropped the thong back in the box like she had picked up something dirty and looked at it sitting there in a crumpled heap.<br/><br/>Right then the college student wasn't sure she could go through with the testing campaign. She wasn't afraid to wear the lingerie, but taking a photo in it was another thing. Kristina made herself breakfast and another coffee mulling over her choices. She looked through the photos trickling into the underColor app as other testers apparently woke, then found their days underwear in their mailbox or on their doorstep, then posted their photos and reviews.<br/><br/>Curiosity won out. Kristina decided that she couldn't make her decision unless she actually tried on the underwear first. Facing away from her mirror she slipped out of her pyjama pants and panties then stepped into the thong. Once she had it on she peered down at it looking as she tucked a stray pubic hair into the side of the underwear. From that angle, they felt just like a regular thong, but when she moved the air brushing over her exposed labia made her feel like she was pantiless. It was a strange juxtaposition of familiar sensations.<br/><br/>Continuing, Kristina removed her robe and t-shirt then slipped the bra up her arms to sit against her petite breasts. She let out a soft, almost inaudible coo as the silk slipped over her skin. The fine silk was like the softest caress over her breasts and nipples and she relished the feeling, lusting for more.<br/><br/>Experiencing the feeling of the fine lingerie was what tipped the scales in favour of Kristina proceeding and taking the picture for the underColor app to meet the requirements to continue the program. She spent all morning in just that vivid red underwear photographing herself in different poses, trying as hard as she could to hide her obviously visible nipples and her pussy that the crotchless thong failed to hide (though she was grateful that it did hide her tuft of blonde pubic hair. She became so engrossed in the task that it was well past lunchtime when she had a shot that she was happy with.<br/><br/>The pose Kristina settled on was her sitting cross-legged on her bed holding the phone out selfie-style. From that angle, only the top of the thong was visible, not the opening at the bottom. She turned her head away from the lens looking every bit as shy as she was feeling with her nipples plain to see but she had given up on hiding them and her pussy. She slipped on her dressing gown and posted to the app then made a long overdue lunch.<br/><br/>It was only while she was eating her lunch in the middle of the afternoon that she looked at her messages as she ate. She had neglected them while engrossed in the photoshoot. "Really?" she spluttered when she followed a thread about a college friend's birthday drinks. She knew that there was no backing out, but after being alone all morning she was actually looking forward to the company, even if she didn't like bars. Following the thread, she read that they were coming to get her, whether she liked it or not (probably because she hadn't replied once). Looking at the clock, Kristina was surprised that she only had about forty minutes to get ready and rushed into her bedroom closet leaving all the documents and<span class="fixed-color" style="color:rgb(184, 49, 47)">'Color me red'</span>card on her kitchen table.