This story is based around our sexual relationship following the discovery of files on my stepson's computer and is the second part in a short series.
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I had only had time to actually watch four more media files, they were of similar content to the first but I will admit a little more risquΓ©.
As time progressed with each watched file it was acutely apparent that Mark was getting far more confident in his actions and believed that his dad and I slept soundly through all his sexual administrations.
The focus on arousing me first was taking over his need to excite or stroke himself, two of the videos had shown him leaning in sucking and licking my nipples then gently and working my pussy into a real lather with his fingers before placing his unstimulated cock in my wetness.
Rubbing the head of his cock on my mound before he started jerking off seemed to be the new favorite turn on, in fact that always made his cock spew forth copious amounts of pre cum.
Since the discovery of the conversation, those files and that very first viewing I seemed to be in a constant state of sexual arousal, for instance today which was a week after watching the very first file I was just too aroused to think of anything else.
One thing for sure is I just couldn't concentrate whilst at home knowing that there were more media files that I had not yet watched of erotic happenings with me in a starring role on his computer.
This past week had been frustrating to say the least, Robert my husband had made love to me three times and I had orgasmed strongly, however satisfying they certainly lacked something.
The only way I could explain them was with boring mediocrity of the usual administrations.
Not that I was ungrateful for any closeness with him or an orgasm of any description or the fact that I didn't enjoy the closeness or the orgasms.
My frustration stemmed from the fact that I was lusting after Marks administrations, it was obvious to me that the lust I experienced watching my horny stepson in the media files just was no longer present with Robert and knew I just had to reignite that feeling with him somehow.
Mark my stepson had been away for the week with youth camp activities so I was more than over due a night intrusion and I strongly suspected Mark felt the same.
My reason for that was that he had called last night to ask if his dad was still going on his business trip the night following his return, I had confirmed the fact and was not surprised to hear him say how much he wanted to come home and had missed me.
Mark had returned from camp late Sunday and was obviously exhausted, going straight to bed and sleeping right through until this morning.
Over breakfast with both kids I planned my morning carefully to at least accommodate skimming a few files more to get me in the mood for what I planned tonight.
Having hurried both kids out of the door to school in my usual robust fashion I completed my usual daily household chores in a quarter of the time it usually took me.
Keen to settle down and provide myself with sexual stimulation I found myself in the hallway stepping out of my jeans to expose myself for the delightful time I had planned.
Settling into Marks computer chair with my previously located eight inch vibrator close at hand anticipation caused butterflies kisses in my stomach.
I loosened my shirt to expose my breasts and slipped my hand under my bra to tweak one of my already rock hard nipples, delightful sensations rippled through my body and I felt my pussy release its sweet nectar.
Oblivious to anything else but my own sexual desire I began to circle my erect nipple, I was disturbed by the telephones loud trill, I cursed at whoever the caller was as I speedily headed down the hall way to answer it since despite being more intent on watching the next installment of Mark's night intrusion.
I reminded myself to switch the answer machine on as I ended the call and lock the entrance door to the house.
I picked up the handset in the kitchen the cool tile floor on my bare feet causing a sharp intake of breath.
As I spoke to the caller the previous nights antics with my stepson continued to play out in my head already causing me to visually replay over the sexual acts in my mind, sexual arousal really being the only thing on my mind at that moment, I was too excited knowing full well that fulfillment was imminent and that I would hurry the call.
I recognized my husband's voice, hoping not to alert him to the fact that I was horny as hell I took drink of water from the glass on the kitchen table at the same time as I greeted him.
"Hi Loni babe, it's me," I heard my husband Roberts deep husky voice.
He explained that he'd a few minutes free time so he thought he'd say good morning and enquire if I had slept good, I hated to lie but I said that I had slept like log after taking one of his sleeping tablets.
Hating that I was deceiving him in this manner I felt my face flush red, we ended the call with the usual I miss you and I love you conversation.
As I hastily put on the answer machine and returned down the hallway I realized stepping out of my panties that I had not yet locked the entrance door.
Just in case I had a day visitor whilst in the throes of sexual ecstasy I shot the dead bolt on the door and back tracked to Mark's bedroom.
As I entered his bedroom, I scanned the sight of the untidy room which I had no desire at this point to clean up.
Neither did I want to give away any clues that I had been in his room today or alert him to the possibility that I may be invading his space or his computer privacy.
I turned on the computer which seemed to take an age to start, considering the material in this computer and the fact that his dad and I were aware of his sign in password I found it difficult to believe that Mark had left my files so accessible.
Pushing that thought to the back of my mind I awaited the computer to spring to life as I closed my eyes and replayed lasts nights scene I became increasingly aroused.
Reaching for my vibrator I switched on the gentle control, as it gently pulsed I teasing my outer lips through the gusset of my already soaked panties I was rewarded with the familiar clitoral twitch and the contracting rippling of my slick hole bringing forth a gush of lubrication.
Thinking back to supper last night Mark had been extra attentive to my needs, passing things at first request across the table, getting up to bring me extra iced tea even suggesting that I take one of the sleeping tablets Robert had left me early in order to get a good night's sleep.
His intentions blatantly obvious to me must have had Lizzie wondering if he wanted extra allowance.
I laughed inwardly at the thought, I stifled a smirk knowing full well what allowance he would be getting but not of the monetary kind.
I became increasingly horny at the thought of his reaction if he ever realized I had been fully awake, believing me to be comatose having pretended to take the tablet but actually enjoying his sexual administrations.