The Bath Towel

"Yeah, mom, you got a bare spot at the bottom of it." Looking her in the eye, he blurted out in a whisper, "Yeah, looks like little lips."
"Oh, geez, Mark, I really don't understand. You're just have to show me I guess." She flipped open the robe onto her butt. "Now what
were you saying?" She spread her legs slightly. He pointed to the
bare lips. "Oh, honey, just show me." Trying to set his mind at ease, she added, "Oh, don't be embarrassed. They won't bite."
He poked a finger against her mound. "These lips. Why don't you
have hair there?"
"Oh, those? They frame my vagina, hon."
"Oh," he replied as his finger rimmed against them. She squirmed 
slightly causing his finger to slip in a little. As his finger entered past her lips he felt a nodule tap against his finger. "What's
that, mom?"
"It's my clitoris, hon. It's like your penis only a lot smaller."
He tweeked his finger against it causing her to shiver. "Please don't, honey."
As he fingered it he could hear her shallow gasps. Fearing he was
hurting her he quickly removed his finger. Thinking a minute he remembered what she had said about it. "Mom?" He asked as she flipped her robe back down and they continued down the hallway.
"What, hon?"
"Were you getting a little excited?"
"Yeah, Mark, I was." She slapped his butt. "Now, tell your sister
she can come up." She turned to the mirror and started combing her
hair.

Meanwhile Kim, still sprawled on the couch, had slipped a hand into
her shorts and was massaging her vaginal mound. Slipping her other
hand under the tight knit top she groped it into her orange-sized little breasts rubbing, and pulling, against her pouty nipples. Shortly she undid the zipper for a better feeling massage. 

Massaging herself feverously she started to pant with shallow breaths. As she groped her mound and breasts she wondered why she hadn't touched her brother's crotch when he had touched her. Heck she knew it wasn't an accident. An accident would have been a glancing swipe at most. But he had squeezed her breast and groped tightly into her crotch. Did she feel violated? Well, maybe just a
little. But she had to admit that she liked it a little too. 

As Mark came down the stairs he stopped at the lower landing. He
watched his sister for awhile and tried to negotiate a better view to see if she had any hair between her legs.
Unable to do so, he came the last flight. "What ya' doin', sis?"
Hearing his voice she quickly removed her hands and zipped up. She sat up on the couch resting her arms on the backrest as Mark came over to her. "How long were you standing there?"

"Long enough, sis," he replied. "What were ya' doin' anyway?"
Ofcourse he knew full well what she had been doing. But he thought he'd give her the chance to explain.
"I had an itch is all."
"Uh-huh," he commented with a smile. With her sitting there like
she was gave him an opportunity to see her breasts clearer. Even her
pouty little nipples were a little easier to see pushing against the
thin knit top.
She saw his wry grin. She understood what he thought. "Please,
Mark, don't tell mom. Please?"
"Oh, forget it sis, I won't." He came closer to the couch and looked down at her seeing the roundness of her little breasts. 
"Besides, I do it myself sometimes."
"You do?"
"Yeah, once in a while. Say, how would you . . .?"
"No, I don't think so."
"Well, be that way then, Kim." As he walked over to the den to continue his game, he remarked, "Oh, mom's out of the shower now."
"Thanks," she replied getting up from the couch. 

Mark stopped and watched his sister bound up the stairs like she
always did. Her breasts flapped giving him a good show. 
Natalie was coming down as Kim was going up. Stopping her on the stairs she said, "Just where are you going, young lady?"
"To take my shower, mom."
"Yeah, well, okay." Natalie thought about it. She had to think of
a way that would allow Mark to see his sister nude. Noticing Mark
standing near the staircase, she said matter-of-factly, "Say, Kim
sweetie, why don't you give me your stuff now? Then you won't have
to bring them down later."

Kim understood perfectly what her mother's intentions were. She
batted her eyes toward Mark. "But, mom, you know."
"Oh forget about him, sweetie. Besides, you don't have much to see
anyway."
"Is that an insult!?" She blurted out flapping her breasts with a
few pelvic thrusts thrown in.
"No, sweetie, not in the least. But let's face it you really aren't that developed."
"Yeah, well, you don't have to rub it in."

"So, save me some time and let me have your clothes."
Mark watched intently as Kim stood there, kind of flauntingly, with
her chest puffed out. He was actually surprized when she sharted to 
slip up the knit top past those cute little bumps on her chest. 
She slipped it up slowly past her head and stood there, momentarily, tightening up her little breasts causing her nipples to
stand out in stark contrast. She gave her mother the top and her breasts dropped normally.
"Gee, sweetie," Natalie replied, "you have cute little titties."

"Oh, mom," she blushed. Seeing Mark's eyes staring at her, she bent over the railing allowing her breasts to be plainly seen, and
asked, "Well, what about it, Mark? You like my titties?"
"Sure, sis," he answered, an embarrassed tone to his voice.
"Now, Kimberly, how about those shorts you're wearing?"
Kim unzipped her crotch-hugging shorts and was careful to just
remove them. Handing them to her mother she now stood on the landing
in very tight pink lace undies.

Mark looked intently at them noticing his sister's vaginal bump pressing against the thin fabric. He hoped his mother would force to
take them off, too. After all she had teased him with revealing her
breasts to him. Now he wanted to see below her panties. He wondered
if she had hair down there? He wondered it she had a lot, just a little, or none at all. He was anxious to see. Would his mother force his sister to take off her panties and let him know for sure?

"Well, young lady, how about those pink panties of yours?" Natalie
asked, bluntly. Afterall she was intending to let Mark see his sister
in the buff. As a matter of fact she was wondering also what was under them. She wondered if her daughter concealed some blond fuzz.
"Oh, mom, do I have, too?" 
Natalie could sense her daughter's embarrassing tone. She wasn't heartless and respected her daughter's vanity. "Oh, okay, sweetie, you can bring them down later."

"Thanks mom," she blurted out and bounded up the stairs as both watched her bouncing titties.