I had my first screwing, and  I could really get into it, now that I'd
experienced what it was like.  Trouble was, I didn't know any girls around my
age that would be willing to be my partner with it on a steady basis when I
needed it, so I wasn't all that eager to cut my stepmom lose just yet . . .

"Why don't you just get her a chastity belt."  Shauna said from the top bunk.

"A chastity belt, what's that?"  I asked, lying in bed not ready to greet the
day just yet.

"You know, a thing that fits over the lips between her legs and keeps her from
getting outside stimulation."  Shauna said.

"How did you hear about a thing like that?"  I quizzed.

"In a book I read.  So, what do you think?"  She said.

"Sounds good, but where do you get something like that?"

"We can go over to my house and check on the computer.  We just got the
Internet."  She said.

"Cool." I said, throwing my covers off and bounding out of bed.

When we got downstairs, Terry was up drinking coffee in her silk robe, staring
out at Juan who was just setting up to work in the yard.

"What's he doing here?"  I said angrily.  Terry looked at me not knowing what to
say.  "He's history.  Right now.  Tell him he's done.  If I ever see him again
anywhere, anytime, you're history too.  Get it?"  I demanded.

We watched as she went outside to talk to him.  She had to slap his hands away
from her butt as he moved the silk up and around her cheeks, trying to slink his
body up against hers.  Then we saw him protesting, his arms flailing in the air
around him as she spoke.  He turned and stomped his foot.  Terry turned and
walked back inside.  "He's gone."  She said with melancholia.

"Good.  Now go and put on your skimpiest bikini while we get some breakfast."  I
directed.

"What are you going to have me do?"  She asked worried.

"Well, the yard work of course."  I said.  "Only, the money you get from Dad for
it, you give to me.  I'm planning to buy you a present with it."  She really
didn't know how to take that.

We scrounged for food while Terry was changing.  When she came back into the
kitchen, my eyes bugged out.  I'd seen her plenty, but there was something about
this tiny white bikini on her that projected inescapable sexuality giving me a
woody and pissing Shauna off.  The tall triangles of the top hugged the form of
her breasts and just covered her areolas enough to be legal.  The high cut
bottom hugged her pubic mound and pussy making both look like they were puffing
to get released.  "What do you want me to do?"  She asked in her submissive
kittenish way.

"Prune the bushes along the back fence while I'm at Shauna's."  I said.

"Can't I wear anything more than this?"  She asked.

"Sure, wear gloves."  I said.

We made like we were leaving and doubled back to insure she did as she was told.
We watched undetected as she tearfully and gingerly clipped branches, carefully
moving them away to avoid having them catch in her exposed tender skin.
Satisfied that she would continue to work on her own, we went over to Shauna's
and learned about chastity belts.

"They don't look very comfortable."  I remarked.

"They're probably not. . . .  what's this?"  Shauna said, opening a site that
claimed to have chastity belts, but they looked like panties.  "These are
interesting.  They look just like panties, but you can't remove them without
working a combination lock in the back."

How do they work?"  I asked.

"Well, according to this, the seams have small diameter cables running in them,
and then the one around the waist connects in back with this inline combination
lock like a bike lock."  Shauna demonstrated as she rotated the image of the
panties in 3D.

"Is that gonna work?"  I asked, referring to the pussy panel made of a
semi-stiff open weave nylon material.  "It looks like she could still rub
herself."

"She could probably do it, but it might make her fingertips sore after a short
while.  I don't think I'd like to have a barrier like that."  Shauna said.

"What about going to the bathroom?"  I asked.

"Says here, you can go while wearing it.  You splash water on afterwards and dry
with a tissue, but it obviously has to be removed for the number two."  Shauna
got from reading the copy.

"So one of us needs to unlock it when she wants to go number two?"  I asked.

"Seems so.  She'd better stay close to one of us, or she'll be in dire
straights."  Shauna said with satisfaction.

"Can we just order it over the Internet?"  I asked.

"We'll need a credit card."  Shauna advised.

"I'll go back and get hers."  I said and went back home.

When I got home, Terry was sitting in the shade with her arms around her shins
and her forehead on her knees, obviously feeling sorry for herself.  I snuck
upstairs to their bedroom and found one of her credit cards and snuck back to
Shauna's.  When I got back, Shauna was at the ordering page.

"Yo."  She said.

"Yo." I said back.

"Ya know, you can have it delivered in one day."  She announced.

"Let's do it."  I said

"It costs a lot more."  She advised.

"Who cares."  I said, and we did it.

We went back to my house all excited at the surprise we had for Terry the next
day.  On the way over I asked, "Anything you'd like Terry to do for you today?"

"Hum, let me see.  Well yes, I could really use a backrub."  Shauna said.

When we entered, Terry was in the kitchen getting a drink of water.  "Don't
worry," she said, "I'm on my way back out."

"That's okay," I said, "there's something else you can do for us right now."

Terry sat in the kitchen while we got some sheets and vegetable oil.  Shauna
laid down on her stomach and pulled her baggy tee shirt up to her shoulders out
of the way and waited while I told Terry to give Shauna needed a backrub.

Terry got up, obviously peeved, and mumbled, "I'm the one who needs the
backrub."  She knelt down next to Shauna and tentatively touched her back with
her fingertips. 

"Tell her to put some oil on her hands and start getting into it."  Shauna asked
me.

"The oil is going to get on her clothes."  Terry warned.

Shauna took the tee shirt all the way off her head and unsnapped her bra in
back, and lowered her gym shorts to mid butt.  "There."  She said, not wanting
any more interruptions.  Terry reluctantly smeared oil all over Shauna's back.
Shauna's eyes were closed and she was moaning a purr.  Terry kept occasionally
glancing at me in the hopes that I would say "Enough," but Shauna was really
enjoying it.

"Lower down, on her butt.  She'll like that too."  I instructed. 

I was getting vicarious pleasure from Shauna's enjoyment and visual pleasure
from Terry's gold-digging form working at the task.  I started to move her
shoulder straps down her shoulders.  Then she took her bikini top off all
together without any further prompting from me.  I watched her breasts and chest
muscles at work for awhile, then tugged on her bikini bottom to let her know to
remove it as well.

"Can you have her do my shoulders?"  Shauna asked.

Terry climbed onto her in a straddle to have a better angle.  "Hey, tell her to
get that cheating pussy off of my back."  Shauna demanded.

Terry looked at me quizzically.  "You heard her, get your butt up off of her
while you do it."  I demanded, while cupping her cheeks with my hands in mock
assistance at lifting them.  Terry bent over at the waist, really angry at us,
her butt and pussy spread wide from her opened straight legged stance.  "Go on,
do it."  I directed, as I examined her female anatomy up close and personal like
I'd never seen it before.

It was getting too much for me to just look, I needed to get back inside again.
I pulled my shorts down and off, then positioned my woody at the most likely
entrance, when she said, "You can't keep putting that little thing in me
whenever you want without me getting pregnant." 

That "little" reference frosted me, but I guessed she was right.  I took some
oil and smeared it up and down my cock.  I was going to try what I'd seen in
some of my magazines.  Then I stuck my oiled finger into her asshole.  "This
should only have you pushing out little spermlets rather than kidlets."  I said
amused at my recovery from her barbs.

She put her hands on her knees and looked around as best she could, "No, don't
do that, it's not decent."

"Oh, my Stepmommy Dearest, my moral authority, speaks to me on decency.  How
funny is that?"  I said as I put my hands on her hips and the tip of my cock at
her tight hole.

"Oh god, what have I gotten my self into?"  She muttered to herself. 

By the time she consigned herself to the fact that I was going to enter her
wrong hole, she looked back down at Shauna, who had rolled onto her back and
slid her bottoms off all but one ankle.  Shauna poured a little vegetable oil on
each of her nipples with an expectant grin at Terry.  Between grimaces at the
pain I was causing her, she reached down to massage the oil onto Shauna's tits.
As things progressed, my activities were causing her less pain and more
pleasure.  Shauna was writhing under her touch with her hands behind her head,
and I was in a discovery mode, comparing the heat of the cavity, tightness of
the rubbery ring, and the difference in her muscle contractions to the time
before in her pussy.

Shauna suddenly scooted back and spread her legs open wide, almost as wide as in
splits.  Terry whined "Ooooo,"  and reached out to touch Shauna's pussy.

"No, from your lips to mine, Fancy Breasts."  Shauna ordered.

I followed Terry down as she went to her knees between Shauna's outstretched
legs, without missing a beat.  As Terry brought her face down to Shauna's other
lips, she was forcing her asshole to widen and push back at me more.  That was
really fun.  It was making it easier for me to push in and pull out, and thus
vary the tempo as I desired.  Shauna was holding the inside of her ankles in
each hand to keep her legs up and wide open to give Terry a maximum target for
her tongue.  Shauna's uninhibited squeals and reactions to Terry's activities
were endearing me to her in an unexplainable way.  I was getting a rush off of
her getting so much pleasure and expressing it so openly, that I was in a
special nirvana myself, when I finally came in long hard uncontrollable thrusts
into Terry's top hole.  Even Terry must have been impressed with the younger
Shauna's openly expressive sexuality, as she wouldn't let up right at the first
time Shauna pleaded for no more. 

Shauna lay spent, with her arms laying limply straight out from her body and her
legs spread, her pussy probably throbbing from the new limits it had just
achieved for her.  Terry sat back on her haunches sweating, breathing heavily,
and apparently worked up from the treatment I had given her in her ass.

"Ah, um, is there,  . . . well could you, . . . um, . . . how about me?" Terry
got out with some difficulty.

Shauna giggled when I said, "Well, you've got two hands, you can do it now for
yourself, or later today.  Better yet, since I'm feeling especially generous,
I'll let you invite Nature Boy over for one last fling tomorrow.  It can be sort
of a goodbye present to and from each of you, but he can't come over until noon
at the earliest."

She looked at me perplexed, "You'd allow me that?"

"We'll just call it a 'one time thank you' for doing such a good job on Shauna's
backrub."  I said.

What a picture Shauna and I must have made, with me now laying on the floor next
to her propped up on my elbows, and Shauna now luxuriating with her head resting
in her hands behind it.  We basked in our afterglow's as we watched Terry figure
out her next move.