As usual, spending time alone with her new friend Teresa had sent Katherine's head spinning. Being 'properly brought up' - as her mother constantly pointed out - she was used to a comparatively sedate life, where everything followed a set routine, activities were planned weeks in advance, and nothing 'risky' was ever contemplated. She had kept her developing sexuality carefully under wraps, since anything to do with sex was clearly regarded as 'dirty' in her house. And her most deeply guarded secret, a dark and sordid-feeling fascination with punishment, specifically corporal punishment, was something she never intended to reveal to a living soul.

And yet, within a few weeks of starting her new school, she had fought with, been thrashed with, spanked by, slippered with, and now snogged by, Teresa. This girl, and her family, were the complete opposite to everything and anything she had ever experienced before. She seemed completely at ease with the sex stuff. Where Katherine bottled her thoughts and tucked them away, Teresa openly explored and wallowed in hers. And her gorgeous brother was something else!

"Come on, it's time for your punishment." Teresa was sitting upright on the side of the bed, crooking her finger in Katherine's direction.

"Those words!" Katherine thought, "Why do they make me feel so funny?" The thought of letting Teresa punish her, especially like that, scared her. And yet, it was excitingly irresistible.

Teresa patted her lap, "Come along, naughty girl, I'm going to spank that sexy little bum of yours."

"But... couldn't we just... um..."

Teresa was looking hard into Katherine's eyes, and reaching a hand out towards her. Katherine felt her own hand reaching out to meet it. She couldn't help herself as she slowly rose and took the couple of steps it took to feel the front of her thighs pressed lightly against Teresa's. The contact sent an electrifying jolt through her body. In an instant, her whole being became transformed into that of a naughty little girl, who was about to have her bottom smacked. She tried to think through what was going on, but she was already too far gone. With Teresa pulling gently on her arm, she felt herself being led irresistibly to lay face down across the other girl's bare thighs. She caught a glimpse of blonde pubic hairs escaping from between creamy thighs, and then the bedspread came up to meet her. She toppled awkwardly, legs flailing briefly until her weight settled across the girl's knees.

"There now, let's make you comfortable." Teresa snugged Katherine in towards her, settling her legs onto the bed on one side, and her upper body on the other. "Let's have this skirt up out of the way, shall we?"

Katherine felt her skirt being lifted up off her bottom, and then a hand under her hip lifted her slightly and suddenly there was warm bare flesh pressing back against her own bareness. She slowly became accustomed to the strange position, accepting it, feeling a sense of safety washing through her. A warm, soft hand silked across her bare bum. "mmmm...... that's nice...." She thought.

"Who's a naughty girl then?"

"Me. I've been very naughty." The words came surprisingly easily to Katherine. What else was there to say?

The hand patted her bare bottom. "Then I'll have to spank you, won't I?"

"Yes, I deserve a spanking. But not too hard, OK?"

SMACKK! "Oww!!"

"I am making the rules, young lady!" Teresa's voice, commanding.

Katherine's bum tingled warmly. The sharp smack full across her rump reinforcing her feeling of vulnerability. She began to doubt that this was such a good idea. What if Teresa continued to spank her so hard? Teresa's palm patted her bottom reassuringly.

"Oooh! Pink hand-prints already! You've got a luscious bum for spanking."

Katherine wasn't sure if that was a good thing or not. It was clear that Teresa was thoroughly enjoying herself though. Further thought was interrupted by a succession of soft spanks landing alternately on both cheeks of her bottom. Mmmm, nice. She relaxed again, savouring her position, and the sensation of having her bum gently spanked. She pushed it upwards a little, encouragingly.

Teresa wrapped her free arm over Katherine's back and hugged her torso in tightly, she was really going to enjoy this. She paused her spanking for a moment to squeeze and stroke the slightly pink cheeks across her lap. Tempting glimpses of Katherine's anus and lips tormented her as the moulding of her bottom pulled her cheeks apart.

Smack.... smack... spank... spank.... smack... spank.....

Katherine squirmed. The spanking resumed, slightly stingier now, but somehow she wanted it to sting. She found herself trying to grind her pubis against Teresa's thigh.

"Yes, you naughty girl, I know what you're doing!" Teresa laughingly rebuked. "Lift up a minute." She slid her left palm under Katherine's tummy, and down until her finger tips felt the soft curls of her pubic hair. Pressing further, she curled her fingers to cup moist pussy-lips. "There now," she said, as she resumed her spanking rhythm.

Now, as Katherine squirmed, she enjoyed the pressure of Teresa's fingers against her. She wanted more, and allowed her thighs to spread slackly. Her bottom writhed and humped in time with the spanks, feeling the vibration and warmth spreading deeper and deeper. Teresa's fingers insinuated themselves between her lips, and now she was getting thrills from their direct contact with her clitoris.

Teresa slowed her spanking a little, savouring each slap of her palm against that softly yielding bottom flesh. Her trapped fingers slid wetly along Katherine's pussy as the girl humped against them. She could feel the nub of the girl's clitoris pressing firmly against her, and she was emitting a strange moaning, mewing sound with each thrust of her pelvis. Teresa spanked more firmly, ensuring that each smack reverberated deep into the thrusting bottom.

"Hmm! Hmm! Hmm!! Hmmm!!! Hmmm!!!" Katherine lost all control as a mounting orgasm built from deep inside her. She prayed the spanking didn't stop. "Make it sting. I'm a bad girl! Spank me. Spank me! Spank me!!"

Teresa heard her friend gasping in time to the rude jerking of her hips. She drove each spank home, thrusting the girl's pussy against her teasing fingers. She sensed a climax coming and helped as best she could by spanking in time with Katherine's movement.

"SSSSSssssssssssssssss....mmmmmm...aaaaaaahhhhhhhhhh!" Katherine's hips jerked, finally, spasmodically, and thrust hard against Teresa's willing fingers, quivering as a mountainous orgasm swept through her.

"There now," Teresa's palm smoothed across Katherine's tingling, throbbing bottom, "there's a good girl."

Katherine was jerked suddenly back to reality when a sharp smack landed across her hot bottom.

"Come on you! I haven't finished your punishment yet, lady."

The tone of authority in Terasa's voice sent fresh thrills running through Katherine's stomach. She had no idea how long she had been lying across Teresa's thighs, but as she made to rise she felt their skin slowly unpeeling from her tummy.

"Hmm...? What...?" Her mouth was working just as slowly as her brain. "But you spanked me!"

"Oh no, missy! That was just a warm up, now you have to get The Bat!" A thin smile spread across Teresa's lips. "I'm looking forward to this. Now come here and stand nicely in this corner while I get ready for you."

Katherine's wrist was grasped and she followed meekly across the plush carpet, allowing herself to be positioned facing the corner behind the door. She felt Teresa nudging her feet wide apart, and then her hands being lifted and placed on top of her head.

"There now, sweetie," Teresa's warm breath wafted her neck as she whispered seductively into her right ear, "that's right, you be obedient for me..."

Katherine felt a warm body press lightly against her back and bottom, and then cool hands smoothly exploring the entire length of her torso, slipping inside her open blouse to cup both breasts, and then down across her tummy until they pressed against her cunny through the pleats of her skirt, then slippping down the fronts of her thighs, and back, this time in contact with bare flesh as they drew her skirt up. She sighed deeply, swooning slightly, and leaned back against the girl behind her for support.

"You like it, don't you, naughty girl" Teresa breathed.

"hhhhuuuuuysssssssss" Was the best Katherine could manage. She felt her skirt being lifted over her bottom...

SPANK!!

"Owwww!"

"Yes Mistress!" Teresa's voice, hard edged.

Katherine sensed the game had shifted and played along as best she could. "Yes, my Mistress." Speaking the words thrilled her intensely.

The hands continued to play with her body, caressing her every mound and contour, insinuating themselves into her every crevice, front and back.

"Shall I punish you, my naughty girl?"

"Yes Mistress. Please punish me, I'm a very bad girl." Suddenly Katherine knew nothing other than a strong urge to be treated harshly. She wanted more than the lingering, throbbing warmth her bottom still felt.

"Bend over. Hands on your knees, and push that naughty arse out!"

Katherine bent, thrusting backwards as far as she could. She felt her skirt lifted again, and a cool sensation between her thighs reminded her of how she must look to Teresa.

Something hard and cold tapped her bottom. The peculiar sound it made as it patted against her skin was tell-tale. The Bat!

A hand pressed into the small of her back, keeping her bent low, then... WHOP! A pause, then more tapping.... WHOP! WHOP! WHOP!

Katherine's knees bent. That stung!

But she wanted it, her bottom thrust rearwards, seeking more.

WHOP! ...... WHOP! ...... WHOP! ...... WHOP!

The sting magnified and invaded her mind. She realised her breathing was coming in gasps, and being exhaled betwen her clenched teeth in a series of hisses.

"Four more to go, naughty girl. Do you want them?"

"Yes, I want them. Punish me, Mistress. Please...." She pushed her stinging bottom out until her back strained. It was right.

One by one, four more times the bat smacked hard against her burning cheeks, each one harder than the swat before it. Her hips jerked forward as each landed, she wondered how much more pain she could take, it hurt so strongly, but still she forced herself back into position, ready to accept the next.

"Good girl!" Teresa exclaimed excitedly, coming completely out of character, "you're a great sport!"

Katherine sank to her knees in the corner, hands clasping both cheeks, gasping for air.

"Jeeeezzz!!" was all she could manage between pants. "That....  stings!!"

Teresa suddenly felt awkward, and a bit silly, standing with the plastic child's cricket bat limply at her side. She was suddenly worried that she had gone too far, and quickly dumped the bat on the chair beside her. She crouched down beside Katherine and hugged her. "Are you OK, Katherine?"

Katherine turned slightly and returned the embrace. "Shit, Teresa! That hurts like hell! It's fantastic!"

"I know." Smiled Teresa.

to be continued....