"Look what I brought home!"

Megan Pierce ran to the doorway as soon as she heard her father's voice. He stood in the doorway holding a large white box in his arms, which he struggled to keep upright.

"Dad, let me help you with that!" Megan said, as she rushed to help hold the other end of the box. The two of them carried the box into the kitchen and rested it upon the counter.

"Let me see, let me see!" Megan said excitedly.

Bill Pierce gave his daughter a knowing smile, and ceremoniously opened the box so she could to peek inside.

The box contained two large birthday cakes, side by side. One read "Happy Birthday Megan," while the other read "Happy Birthday Mallory."

A grin formed across Megan's face, and she looked up at her father with joy.

"You got me vanilla, right?" Megan asked.

"Vanilla for you, chocolate for Mallory," Bill said.

"I love you, Daddy!" Megan said, and she wrapped her arms around her father and squeezed him tightly.

"Happy Birthday, baby!" Bill said. He rocked her gently, cherishing the embrace. As he released his hold, he looked lovingly into her eyes.

"Wow," Bill said. "Seems like it was just yesterday I just brought you two home from the hospital."

Megan nodded proudly.

"I can't believe today I'll be giving my little angels nineteen spankings!" Bill said.

Megan paused and bit her lip.

"Yeah, Dad, about that," Megan said.

"What dear?" Bill asked.

Megan looked to the floor. She'd been meaning to mention this to her father sooner, but she had a difficult time broaching the topic.

"Well, I was hoping, maybe this year, we could do away with the birthday spankings," Megan said.

Bill's face dropped. Megan felt a knot form in the pit of her stomach. This was the reaction she had feared.

"Oh honey, you know how much I love giving you girls your birthday spankings each year," Bill said. "It would break my heart to stop to stop this tradition now."

Megan dug the tip of her foot into the floor. She hated disappointing her father more than anything else, but she did not make this suggestion lightly.

"Yeah, but we're nineteen now. We're not kids anymore," Megan said. "And I really don't like having my bare bottom spanked in front of my friends anyway. It's sort of- embarrassing."

Bill looked shocked.

"Embarrassing?" Bill asked. "Why would you be embarrassed? Do you want to have your spankings done with your panties on like you did last year?"

Megan shook her head.

"I'd rather not have them at all. Or at least, over my jeans," Megan said. Bill tisked.

"You can't have your spankings over your jeans," Bill said. "You need to be able to feel the spankings against your skin, with no interference from clothing. Look, why don't you talk it over with your sister? Maybe see what she wants to do?"

Megan shook her head in frustration. She knew that would get her nowhere. No sooner did Bill mention her that Mallory Pierce came scampering into the room to give her father an equally as loving a hug as Megan gave him.

"Hi Daddy!" Mallory said, squeezing her father tightly. She turned her head to look at the two birthday cakes, and promptly stuck her finger into the one with her name.

"Chocolate? Yes!" Mallory exclaimed. She licked the frosting from her finger and smiled.

Megan and Mallory were fraternal twins. While they did not look exactly alike, many people did confuse the two. This bothered Megan somewhat, being as their personalities were quite different.

Although they were both average height, with shoulder length brown hair and brown eyes, Mallory was slightly taller and slimmer. They had attractive breasts, though Megan's were noticeably bigger and fuller. Both girls had very cute, round bottoms that looked great in panties, spandex pants, or jeans, which they were wearing now.

"Hey Daddy?" Mallory asked.

"What, Baby?" Bill said.

"Can me and Megan pleeeeease have bare bottom birthday spankings this year?" Mallory asked. "I hated how you told us to leave our panties on last year!"

Bill folded his arms and looked at Megan.

"Well, that was because of your sister," Bill said. "She asked me to leave them on last year."

Mallory turned to Megan indignantly.

"Whyyyyyyyyy?" Mallory asked. "It's soooo much better to get a spanking on the bare bottom, Megan! Come on!"

Megan turned away. Every year, when it came time for the birthday spankings, Mallory would be the first to drop her drawers, eager to get her bare bottom spanked. In recent years, Megan became the reluctant one, much to Mallory's dismay.

"You can do whatever you want," Megan said. "I'd rather not be spanked at all."

Bill shook his head.

"No, what I do for one, I do for both," Bill said. "You two are going to have to come to an agreement."

Bill wasn't trying to be unfair. He knew that Mallory loved being spanked but not by herself. Spanking both girls was a wonderful way to bond the two of them. Mallory worried that one day her father would give in and agree to not spank Megan, and possibly, not spank her either. Mallory decided to do whatever she could to keep Megan on board with her favorite birthday tradition as long as possible.

Mallory put her arm around her sister and pulled her close.

"How about it, Meg?" Mallory asked. "Bottoms up! Are you with me?"

Meg pulled Mallory's arm off her shoulder.

"I'm going to help Mom finish decorating," Megan said, and walked away. Mallory looked at her father.

"She'll come around," Mallory said. Mallory hoped she was right.

When the guests arrived, Mallory cranked up the music and handed out party hats and leis. Megan greeted each guest at the door and took their coats.

"Hi, thanks, for coming," Megan said as each person entered. Megan took the coats to her parents' bedroom and placed them upon the bed. When she emerged from the bedroom, Mallory waited for her just outside the bedroom door.

"Eric Rosenthal is here," Mallory said with a smile. "Isn't he that boy you like?"

"Shh!" Megan said. "Don't mess this up for me!"

"Ooooh, I guess so!" Mallory said, hopping up and down excitedly.

Megan checked her reflection the hallway mirror and adjusted her hair. Many people told Megan she was pretty. Megan liked to think so. Satisfied with her appearance, Megan turned confidently down the hallway and out into the living room.

She found Eric standing in the center of the room with a cup of soda in his hand.

"Hi Eric!" Megan said.

"Hi Megan," Eric said. "Great party."

"Thanks," Megan said. "Want me to take your coat?"

"Take my coat?" Eric asked. "Why?"

"I'm just gonna put it in the other room," Megan said.

"Oh, right," Eric said, feeling flustered. He removed his jacket and handed it to Megan.

"Are you gonna give me a ticket so I can get it back?" Eric asked.

Megan laughed.

"You're funny, Eric," Megan said. Eric smiled and took a sip of his soda.

Megan carried Eric's coat up to her parents' bedroom. As she placed it upon the bed, she smelled Eric's cologne emanating from the material. She held it to her nose to smell it closer. It was an intoxicating aroma. Megan found herself feeling slightly aroused.

Megan returned to the living room to find Mallory inviting the guests into the basement.

"We have a karaoke machine in the basement for anyone who wants to try!" Mallory said.

Megan casually walked up to Eric.

"Are you going to try the karaoke?" Megan asked.

Eric shook his head.

"No way," Eric said. "Not my thing."

Megan shrugged.

"That's cool," Megan said. "It's still fun to watch."

"I know," Eric smiled. Megan felt her face flush red when she realized her unintentional innuendo.

The partygoers packed themselves into the basement, which left very little room to sit or move around. As Megan wormed her way through the crowd she found to her dismay she'd been separated from Eric. Megan made her way to the edge of the crowd and stood near the wall, where she would have a good view of the singers.

Mallory took to the karaoke machine first. She and her friend Heather decided to sing "I Kissed a Girl," much to the crowd's amusement, namely because Mallory and Heather themselves had kissed at a party a year earlier and had become gossip topic number one at their high school.

Once the giggling had died down, Mallory stepped aside and let a few other guests have a turn. Mallory's friend Tyler took the mike and sang a melodious rendition of "Piano Man," which impressed many of the girls, especially Mallory. Megan stood quietly while she watched several others perform, until Mallory took her by the arm and led her up to the machine.

"Your turn, sis," Mallory said. Megan's face flushed red again.

Megan sheepishly took the mike and sang her best rendition of "Standing Still" that she could, before passing the mike back to her sister. The crowd gave her an encouraging applause as she attempted to disappear within it.

Over the next few songs, the crowd gradually migrated back upstairs for dinner. Mallory and Megan's mother Deborah had ordered several platters of sandwiches to which the hungry party guests happily consumed. Megan decided to sit with a small group of her friends back down in the basement to talk. Meanwhile, Mallory sat with a much larger group of her friends in the living room upstairs, laughing and joking at much higher volumes than Megan's friends. As the platters of sandwiches dwindled into mere platters of crumbs, the general consensus among the party guests was that cake was in order.

Megan's friend Tara happened to enter the kitchen as Deborah laid out the twin birthday pastries.

"Hey, where's the garbage can?" Tara asked, holding an empty paper plate.

"Oh, it's right there," Deborah said, pointing towards the trash can in the corner.

"Thanks, Tara said, and dropped her plate and plastic silverware inside.

"I'll move this out to the living room so people can find it easier," Bill said.

Bill picked up the trash can as Tara took a hungry look at the towering birthday cakes on the kitchen table.

"Mmm, do we get to have cake now?" Tara asked.

"Almost," Bill said with a smile. "Just one important thing we have to do first."

Bill turned to his wife.

"Honey, can you get the chair from my study?" Bill asked.

Deborah nodded. She placed a knife upon the table and stepped out of the room.

"I'll get the girls," Bill said.

Bill carried the trash can out into the living room and set it against the wall. Mallory and her friends dropped their plates and trash into the can. As they did, Bill whispered into Mallory's ear.

"Can you tell Megan to come upstairs?" Bill asked. "It's time for you girls to have your birthday spankings."

Mallory nodded.

"I'll go find her," Mallory said, and she hurried down the stairs.

In the basement, Megan and three of her friends sat eating their sandwiches in a circle on the floor while watching some boys play video games. Mallory came down the stairway.

"Megan? Upstairs. Dad wants to start the birthday spankings," Mallory said.

Megan looked coyly at her three friends, and nodded at Mallory.

"Okay, I'll be right up," Megan said.

Eric turned away from the video game he was playing.

"Did she say birthday spanking?" Eric asked.

"Yeah," Megan blushed. She couldn't believe she was going to be spanked in front of Eric. She hoped Eric would stay downstairs until the spankings were over.

Megan made her way up the stairs and saw her mother placing her father's chair at the center of the living room. The chair without armrests.

Megan knew this chair meant only one thing, and so did many of the party guests. Megan could hear them talking quietly among themselves giggling. Mallory ascended the stairway behind her and her eyes lit up the moment she saw her father's chair.

"Girls?" Bill said, walking towards them. "Can I talk to you in the kitchen, please?"

Megan and Mallory followed their father into the kitchen, while the other party guests gathered around the empty chair.

"So," Bill asked. "What did you girls decide?"

"Bare bottom!" Mallory said with a grin. Megan frowned.

"Mallory! Come on!" Megan said.

"You just don't want to pull your panties down in front of Eric, don't you?" Mallory said teasingly.

Megan crossed her arms.

"That's NOT it!" Megan said. "I don't want to pull my panties down in front of anyone!"

"Well, you need to decide, it's almost time," Bill said.

"Puh-LEASE spank us on the bare bottom, Daddy?" Mallory said. "Pretty pretty pretty please?"

"No!" Megan said in a heightened whisper.

"Maybe a compromise?" Bill said. "How about nine spankings with your panties on, and ten spankings with them off?"

"No, none with them on!" Mallory pleaded.

Bill shook his head and sighed.

"Alright since you can't seem to agree, I'll make the decision," Bill said.

"Okay, fine," Mallory said. Mallory closed her eyes, crossed her fingers on both hands, and whispered to herself "barebottombarebottombarebottomba-"

"We'll do bare bottom this year," Bill said.

"YESSSSSS!" Mallory clenched her fists and held them up in a victory cheer. Megan sneered.

"Daaaad!" Megan said.

"I'm sorry Megan, my decision is made," Bill said. "Come on girls, the guests are waiting."

Megan bit her lip. It never seemed to end. She'd been spanked on her birthday every single year since she could walk; and on the bare bottom every year but once! Megan truly thought this might be the year she might finally be over what she considered to be a silly and tired tradition. Clearly, she couldn't have been more wrong.

Bill put his arms around Megan and Mallory's shoulders and proudly walked them out into the living room.

"May I have everyone's attention?" Bill said.

The crowd quieted and turned their attention to Bill and the two birthday girls. Megan cringed as she looked at the crowd of spectators, who looked back at her. Megan could sense their quiet confidence; of knowing that soon they would see Megan's naked bottom and there was nothing she could do about it.

"Today is a very special day!" Bill said. "These two beautiful girls have reached their nineteenth birthdays! And for that I have something very special planned for them!"

Many of the guests had attended Megan and Mallory's birthdays in the past and knew what Bill had in mind, and gave a teasing "ooh!"

"Let's sing these girls a Happy Birthday!" Bill said.

With Bill leading, the crowd broke out into a melodious rendition of "Happy Birthday." Mallory smiled, pleased to be the center of attention. Megan squirmed in place knowing what awaited her at the song's conclusion.

As the song ended, the guests broke into applause. Mallory giggled in response while Megan gave a forced smile.

"Now, it's time for the very special event," Bill said. "And that is of course, the birthday spankings!"

The guests cheered. Megan's face went beet red.

"All right girls, drop your drawers!" Bill said. "Both of you!"

Holding them by their shoulders, Bill pulled both of the girls close.

"Now which of these lucky girls should get her little bottom spanked first?" Bill asked.

There was disagreement in the crowd, with most of Mallory's friends crying her name, while Megan's said hers.

Mallory eagerly unzipped her jeans and pulled them to her ankles. The guys whistled upon seeing her bare legs and lacy purple panties, while the girls squealed.

"Well, looks like Mallory is ready to go, so let's get started!" Bill said. He took a seat upon his chair and beckoned Mallory over his lap.

"Lose those panties so we can get started!" Bill said, slapping his knee invitingly. Mallory shot a flirty glance at the guys and pulled her panties down to her ankles. The guys howled loudly as Mallory eagerly bent over and perched her abdomen upon her father's knee.

Bill took a glance at Megan, and saw her pants remained on her body.

"Megan, pull down your pants," Bills said. "Your spanking is next."

Just as he said that, Megan noticed Eric ascending the stairs. He was going to see everything! Megan gulped, realizing she did not have a choice.

Megan reluctantly unzipped her jeans and slid them to the floor. She once again went red with embarrassment upon hearing the guys cheer and howl upon seeing her lacy black panties. Megan set her jeans aside and saw Eric had worked his way to the front of the crowd, and was looking at her bare legs. In spite of all the spankings she'd gotten in the past, Megan had never felt as exposed as she did now. Needless to say, Megan elected to keep her panties on until it was time for her spanking.

"All right, nineteen years!" Bill announced, raising his palm in the air. "Everybody count!"

Bill brought down his palm and smacked Mallory on her bare bottom.

SMACK!

"One!" the guests cheered. Mallory giggled. She was genuinely enjoying this. Bill raised his hand again and continued.

SMACK!

"Two!"

SMACK!

"Three!"

SMACK!

"Four!"

Due to the round shape of Mallory's bottom, her cheeks had a very pleasant bounce every time they were struck. Megan wondered if her own cheeks jiggled as much as Mallory's when she got spanked. Being as the two sisters had very similarly shaped bottoms, Megan suspected they did.

SMACK!

"Five!"

SMACK!

"Six!"

SMACK!

"Seven!"

Megan turned away at this point. She couldn't stand watching her sister's round globes shake and wiggle about, knowing that her own bottom likely would do the same. Megan decided she didn't need anything else to make her self-conscious about this experience.

SMACK!

"Eight!"

SMACK!

"Nine!"

SMACK!

"Ten!"

SMACK!

"Eleven!"

The guests were loving it! Mallory was too, by the smile on her face. She kicked her bare legs up and down, which gave the guests behind her a clear view of her lady parts. Megan made a mental note to keep her thighs together to limit her exposure once she was in this position. Mallory didn't seem to care and let her legs naturally spread apart.

Bill however, kept his focus solely on spanking his daughter. He used his left hand to hold Mallory's waist and keep her abdomen still so he could administer the remainder of her spankings. He raised his hand again.

SMACK!

"Twelve!"

SMACK!

"Thirteen!"

SMACK!

"Fourteen!"

Megan could see some of the guys were trying to conceal their erections.

SMACK!

"Fifteen!"

SMACK!

"Sweet Sixteen!" The crowd cheered extra loud for this one.

SMACK!

"Seventeen!"

SMACK!

"Eighteen!"

"Last one!" Bill said. He raised his hand again, for the final spank for Mallory's nineteenth birthday.

SMACK!

"Nineteen!"

The guests erupted in applause, and Megan felt her heart take a dive into he stomach. With Mallory's spanking finished, Megan knew she was next.

"And a pinch to grow an inch!" Bill said. He gave Mallory a light pinch on her rosy left cheek, and then gave her a soft pat on her butt to let her know she could rise.

Mallory rose to her feet.

"Thank you Daddy!" Mallory said, and she planted a kiss on his temple.

"You're welcome, baby!" Bill said. Mallory bent over to pick up her panties. As she did, Bill took a peek at her rosy cheeks.

"Look at that heinie!" Bill said. "Let's see if we can get Miss Megan's behind as red as that!"

The crowd giggled. Mallory placed her feet into her panties and slid them back on.

Bill turned to look at Megan.

"Your turn, Megan," Bill said. "Come on, drop those panties, you know what we agreed."

Megan turned to look at the guests that had gathered around. Eric stood in the very center, watching her as she prepared to strip from the waist down. Why was this happening? Why did her father push this upon her every year? Megan swallowed and prepared for the worst.

Megan stepped forward and reluctantly took hold of the waistband of her panties. She slipped her panties to the floor as she kept her side to most of the crowd. A few guests towards the front side of the house could still see her private area, which she had shaved in preparation for this moment.

Megan did not waste any time bending over her father's knee to help preserve her modesty. She placed her fingertips upon the carpet and stared directly at the floor below her. She did not want to make eye contact with anyone as long as she was in this humiliating position. Megan took a deep breath. In a few seconds time, she was going to be spanked.

"All right, Megan's turn!" Bill said. "Everybody ready?"

The crowd cheered in unison. Megan closed her eyes. It was time.

Bill smiled and raised his open palm in the air. He brought it down with a thunderous SMACK upon Megan's bare bottom.