I was wrapping a last-minute gift when Carli, my roommate, entered our apartment. "Jesus, it's cold out there!"

Focused on the task before me, I didn't look up while she stamped the snow from her boots. "You wouldn't be so cold if you'd dress for winter instead of running around in skimpy clothes."

"I just went out for a minute, Izzy." Carli's exasperated sigh easily carried over to me.

Picking up the now-wrapped gift, I admired my work. The present was a bracelet for Carli's mom, who had been kind enough to invite me over to Christmas Eve dinner. My roommate's parents lived across town, whereas my folks lived across the country. Money was always tight, and this year, I just couldn't afford the cost of a plane ticket. Carli and I, both recent college grads, had been living together about six months, and during that time, her parents had become like family to me. 

Carli shed her coat and then closed the distance between us. As she stood by my side, I could feel the frigid outdoor air still clinging to her. "I got the last carton of eggnog at the store!" she told me, sounding plenty proud of herself.

"Ugh." I grimaced at the beverage she held.

"Have you ever even tasted eggnog?" she demanded.

I thought for a moment. "You know, I don't think I have."

"I rest my case. All the people who say 'ugh' to eggnog have never even tried it. Once you do, you'll love it." She set the carton on the table, shivering dramatically. "My nipples got so hard out there in the cold, they actually hurt!"

That revelation caused my gaze to settle on her breasts. The stretchy, lightweight shirt she wore did a great job of accentuating her problem. Realizing I'd stared too long, I averted my eyes. "Poor baby."

"You don't believe me?" 

Carli's sudden movement drew my attention back to her. With a flourish, she yanked up her shirt. It was just like her to go around braless, and her grin was sly as she exposed her bare tits to me. 

"Carli, for God's sake, cover up!" I cried. 

But this time, I didn't look away.

"See how hard my nipples are?" she whispered, ignoring my feigned outrage. "And still sore! But you know what would make them feel better?" Her eyes grew exaggeratedly wide and innocent as she spoke. "A warm mouth."

I drew in a sharp breath at her suggestion. We'd been playing this game for a few months now, skirting the line of lust and then teasingly withdrawing from it. Just last week, she'd brought home mistletoe from an office party and dangled it over our heads while giving me a kiss. It wasn't a chaste kiss, either. I easily recalled the way her tongue caressed mine.

Carli's rosy nipples now seemed to beckon to my mouth. Before I could lose my nerve, I leaned forward and took the right one between my lips. At first, my roommate squealed in surprise, but when I began eagerly suckling, she wove her fingers through my hair.

"Oh, Izzy, that feels so good! You're definitely warming me up."

While giving her left nipple the same attention, I felt myself growing wet. Her breasts were a little larger than mine, their stiff peaks becoming more supple against my tongue. Carli guided my head upward until my mouth met hers. The kiss we shared was hungry, increasing in intensity by the second. 

She dared to slip her hand down the front of my slacks and into my panties. Now, it was my turn to squeal. Breaking the kiss, I told her, "Your fingers are freezing cold!"

Again, that smile of hers, full of both playfulness and arousal. "But your hot, wet pussy will take care of that." Our eyes locked as she massaged my clit. "And if my fingers are still too cold for your liking, I can always use my mouth."

Moaning from her touch, I glanced at the clock. "We need to leave for your parents' house in an hour." Already, my thoughts had ventured into erotic territory. In the past, I hadn't allowed myself to fantasize about Carli, but I now vividly imagined that skillful mouth of hers making me come.

"We're fine," she assured me. "No need to rush."

The feel of her fingers working insistently between my thighs soon had me breathing faster. If she kept this up, I'd orgasm with plenty of time to spare!

I actually let out a whimper when she withdrew her hand from my pants. Lifting her fingers to her lips, she licked and sucked them, her tongue lewdly gathering up my juices. "Mmm, I need more of this," she murmured. It amazed me how readily she expressed her desires, just as she'd flashed her tits with zero hesitation. "Izzy," she went on, "do you think Santa will consider me a bad girl if I eat dessert before dinner?"

Carli's question, so deceptively casual, made me abandon all self-restraint. Grasping her wrist, I led her toward my bedroom. On the way, I offered a smile of my own. "If he does, I'll be on the naughty list right along with you."