The following fictional story is being reposted by Mr Double.  If you are the author of this story and would like to receive proper recognition (an Author's Page at my website), contact me at mrdouble@ix.netcom.com.






                  FOR MY SISTER-IN-LAW'S HEALTH  
  
  
  
  
For several years, ever since I met her, I have been wanting to fuck my
sister-in-law.  More recently, however, the desire to fuck her has been
over-ridden by the desire to take her temperature rectally and give her an enema. 
I knew, that if I let patience prevail, my desire would be fulfilled.  
  
We were on vacation and my sister-in-law and I opted to stay in the condo while
my wife and brother-in-law went out on the beach.  I had some work to do, and
my sister-in-law was not quite feeling up to par.  We had eaten quite a good meal
the evening before and it was easy to understand how one could be made ill from
the rich and bountiful pleasures that were served.  
  
As I sat at the table reviewing some paperwork, I heard Sue call for me.  I went
in to her bedroom and she told me that she was feeling a little bit better and
that she thought she would go to the beach.  When I cautioned her about resuming
normal activity too soon she began to reconsider her plans.  I told her that it
was best if we checked her temperature and let this be the determining factor. 
She agreed, but noted that she did not bring a thermometer with her.  It was now
the perfect time to seize the opportunity.  I remembered seeing a thermometer
in the medicine cabinet, so I went to get it.  It must have been my lucky day! 
The ONLY thermometer in there was a rectal thermometer next to a jar of vaseline. 
Well, there's nothing I can do about that-and we DO need to check her
temperature.  
  
I returned to her room with the rectal thermometer and the jar of vaseline,
setting them on the table beside her bed.  Sue was sitting up in bed and I saw
her eyes grow wide with confusion-and a sense of perception-as I informed her
of our plight.  I told her that, indeed, there was a thermometer in the medicine
cabinet but it was a rectal thermometer.  Sue raised some concern over having
her temperature taken this way.  I worked very hard to convince her that it was
necessary and the fact that we were of opposite sex should not hinder the concern
for her health.  She reluctantly agreed.  
  
I pulled the bedcovers back to just below Sue's knees.  She was wearing a t-shirt
that just barely covered her white cotton panties.  She began to become a bit
shy, but after some reassuring words from me, she laid back and let the doctor
do his work.  I told her to turn over on her stomach, and as she did, I pulled
the edge of her t-shirt up to the middle of her back.  The small of her back,
the rise and curves of her ass, and the white cotton bikini panties were a sight
to behold.  I told Sue to lift up at her hips so that I could lower her panties. 
She asked if I could just pull them to the side and insert the thermometer.  Of
course not...I wouldn't want to chance putting the thermometer in wrong would
I?  Convinced, she raised her hips and I slowly pulled the panties down her
legs...and off...now enjoying the view of the untanned outline of her ass, the
tight crack between her cheeks, and the faint sight of the pussy hair just below
them.  I would be exploring this area soon.  
  
She now raised a concern over whether the insertion of the thermometer would be
uncomfortable.  I assured her that I would use plenty of lubricant on the
thermometer, and to make it even more comfortable, I would lubricate her rectum
before inserting the thermometer.  With this, I opened the jar of vaseline and
thoroughly lubricated my finger.  Then, with my free hand, I separated her legs
and spread her buttocks...revealing the sight of her asshole waiting to be
ravished.  Sue began to grow tense as my lubricated finger approached her
asshole.  She jumped slightly as the cool lubricant touched the inside of her
buttocks.  Ever so slowly, not wanting to lose this opportunity, I lubricated
the area around her asshole.  When I felt that she was loosening up, I slowly
continued to ease my finger into her asshole.  Up to the first knuckle she did
not notice my entrance.  Then, she began to tense, so I retracted slightly and
then continued with my probing.  When my finger was inside her asshole slightly
past the first knuckle, I decided that I wouldn't push my luck any further-until
after her temperature had been taken.  
  
I slowly removed my finger, and as it slid from her asshole, Sue commented that
she was just beginning to get used to its presence.  I'll remember that for
future use.  I took the thermometer from its case, and making sure that Sue could
see the care that I was exercising, I thoroughly lubricated its length-especially
on the tip.  Then I returned to my vantage point at her thigh...where I looked
up her legs to her nice ass and almost hidden pussy.  Her legs were still spread,
and she was obviously becoming accustomed to this position.  I separated her
buttocks once more and placed the thermometer against her asshole.  Again, the
coolness surprised her, but after she adjusted to the initial sensation, I was
able to slowly insert the thermometer.  I pushed it in its full length and let
her buttocks close around it.  I then sat at this wonderful observation point
and enjoyed the view:  My sister-in-law, whom I've waited to be with like this
for many years, lying half-naked on the bed with a thermometer sticking out of
her ass...a thermometer that I inserted.  I placed my hand upon the inside of
her thigh (for comfort) and began to lightly rub it.  I noticed that her buttocks
began to contract as I rubbed her legs.  Could this be what I think?  I continued
to rub her leg and she separated her legs slightly further---exposing her pussy
which is now slightly open.  As I continued rubbing her leg, I reached for the
thermometer with my free hand to "adjust it" (for comfort).  I slowly pulled it
slightly from her asshole, twisting it a bit as I did, and then I inserted it
to its original position.  She emitted a low moan and I told her that it would
only be a few more minutes.  I noticed her hips grinding, very slowly, into the
bed.  Now, the time is up.  
  
As I began to withdraw the thermometer, I noticed that there was some resistance. 
Sue's asshole was clenched tightly around the thermometer!  I teased her by
pulling on it a little bit and then letting it stay in place.  Finally, I removed
the thermometer and took the reading.  Things couldn't have been
better...99.6...but she didn't need to know this.  I told her that her
temperature was a little elevated but that I thought that we could get her
feeling fine in no time.  Now, she's really curious.  Using my finest logical
approach, I convinced her that all of her problems had definitely been caused
by an over-abundance of rich food.  This food must be cleansed from her system. 
She agreed...at least in theory.  I told her that there was an enema bag hanging
in the bathroom closet (and believe it or not, there was!).  She was still a bit
unsure, but with some more logic and some reassuring words about how I carefully
succeeded in comfortably taking her rectal temperature, she agreed to the enema. 

  
I went to the bathroom and filled the enema bag with warm water (no
soapsuds...don't want to risk any discomfort this far along in the game).  When
I returned with the enema bag, Sue was a bit taken back by its size and the
douche nozzle that was attached to the end.  I reassuringly explained to her that
she didn't need to take the entire contents, and, oh well, what could I do about
the douche nozzle?  I'm sure that plenty of lubricant can resolve this problem. 
As she continued to express concern over taking a large volume of water into her
bowels, I told her that if I rubbed her stomach, the cramping would be minimal
and the overall feeling of relief would prevail.  She agreed, so I proceeded to
make my next request.  
  
I asked Sue to roll over on to her back and raise her legs at the knees.  This
was a bit of a long shot.  Some more words of encouragement, reassurance, and
concern for her health, and she rolled on to her back.  The t-shirt worked its
way down, so I pushed it up just under her breasts.  As I carefully, and
completely in her view, lubricated the nozzle, she raised her legs.  I took the
nozzle to my position on the edge of the bed.  I separated her legs-and the sight
that I beheld almost knocked me over!  Her pussy hair was neatly trimmed for the
bikini that she wore.  It was also cut short and was almost non-existent around
the entrance to her pussy.  The hair was completely trimmed away below her pussy
around her asshole.  I must continue with my work!  
  
I separated her buttocks with one hand and placed the nozzle against her asshole. 
Upon feeling this sensation, she pushed down with her buttocks and I took this
as an invitation to insert the nozzle.   I pushed in the wider portion of the
nozzle as Sue spread her legs even wider.  This caused me to insert the nozzle
its full length-and-turn on the water.  As Sue felt the water begin to flow, she
started to emit low moans.  I rubbed her stomach in larger and larger circles,
eventually touching the top of her pubic hair in my revolution.  At about this
time, the water had emptied totally from the enema bag.  To my surprise, Sue
experienced NO discomfort.  I slowly removed the nozzle from her ass and
continued with my massage.  Sue  moaned lowly and I noticed that her hips moved
when my hand moved into her bush.  
  
  
I will test to see if I may be further received.  I let my hand wander slowly
to her clit.  As I began to rub it, she responded by pushing up to my hand.  No
sense stopping now!  I rubbed her clit lightly and let the remaining fingers of
my hand slip lower to the opening of her pussy.  It was very wet.  I inserted
one, and then two, fingers into her pussy as I continued to massage her clit. 
She was moving back and forth on my fingers with increasing frenzy.  Soon, she
was bucking on my hand, and the inside of her pussy was squeezing on my fingers. 
As she came, I withdrew my fingers from her pussy and resumed the massage of her
stomach.  When she recovered from her orgasm, she got off the bed and went
quickly to the bathroom to expel the enema.  I sat on the edge of the bed
reviewing what had just occurred.  I must have gotten caught up in my thoughts,
because Sue returned more quickly than I expected.  
  
When I looked up, Sue was standing directly in front of me...naked!  She had
removed her t-shirt and bra and dropped them on the floor next to her.  She told
me that she was feeling much better and asked me if I would check her temperature
to make sure.  With that, she climbed on the bed and assumed a position on all
fours-making sure that her ass was at eye-level when I turned around.  I went
to the table next to the bed to get the thermometer, and as I was removing it
from its case, Sue told me that she wanted me to take her temperature with my
thermometer.  She rubbed her hand along the inside of my leg and up in to my
shorts and grabbed my cock.  She began stoking it, as her free hand pulled my
shorts-and underwear-to the floor.  Naturally, I stepped closer to her.  She took
the jar of vaseline and inserted my now erect cock into it-smoothing vaseline
on my cock with her fingers.   
  
Then she told me that it was time to put the "thermometer" inside.  I went behind
her as she lowered her shoulders to the bed, raised her ass, and reached behind
her to separate her buttocks.  I placed my cock at her asshole and rubbed it
around her ass.  She began to push back, so I let the head of my cock enter her
asshole.  She gasped a bit, but then continued to push against me until the full
length of my cock was inside her.  I slowly fucked her ass as she ground
side-to-side and backwards.  With alternating free hands, I reached to rub her
pussy and her tits.  She has nice, firm tits, that protrude from her chest and
proudly stand firm-no sag, no droop.  As I continued to fuck her ass, the pace
quickened and I let the hand on her pussy insert a finger inside.  It was even
more wet then when she was getting the enema.  Both her pussy and her ass were
tightening on my respective digits.  I planted my finger deeply inside of her
pussy and pressed the palm of my hand against her clit.  I made deeper and more
intense thrusts with my cock as she accordingly responded.  Everything inside
of her tightened as she came...which caused me to shoot years of pent-up desire
deep into her ass.   When we were both finished cumming, she collapsed on the
bed as I slipped from her ass.  I went to the bathroom and got a towel, returning
to the bedroom to dry and clean her ass.  She spread her legs one final time as
I reached deep between her buttocks to eliminate all evidence of our afternoon
together.  I left her bedroom and did not see her again until she came out in
her bikini.  Her body looked good, and I wanted to re-live the experience almost
immediately.  But, I knew that I never would, and to this date, I never have. 

  
  
  
  
  
  
  
  
  
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