I was so ready for my bed, my husband Mike had retired early after I had persuaded him he would have a much more restful sleep and be much more comfortable in bed rather than assuming his usual comatose position in his lounger chair in front of the television.
I had reluctantly stayed up waiting for the arrival of Dale my 18 year old stepson, whom was way later than his agreed curfew.
Of late he had taken to sleeping late in a morning and staying out even later at night that was until his dad had set down some ground rules. Now he had to be home by eleven and out to work in their haulage business at six with his dad.
Now an hour and ten minutes later than he was expected I sat tapping my recently painted red fingernails on the table in the kitchen as I drank hot chocolate.
I was startled from my thoughts by the headlights of his pickup truck shining through the drapes.
As the light slid around the dark walls of room next door to the kitchen I rose and rinsed my cup placing it in the dishwasher I heard the garage doors closing behind him, knowing he was safely home gave me piece of mind.
I headed for the bathroom and brushed my hair, changed into sleep shorts and vest finishing up by cleaning my teeth.
As I vacated the family bathroom I listened for the familiar sounds in the kitchen, when I heard nothing in the house I sensed that Dale had still not entered the house.
I approached the entrance door to the garage to investigate and heard Dale's voice, suspecting he was talking on his cell to some girl I left him alone for a few minutes. Instead of approaching I started setting up the coffee maker for the morning and waited to have a quick word with him about him lateness before settling down in bed.
I became increasing irritated at his lack of consideration and keeping me up waiting, when more than five minutes passed by I turned the knob of the door fully intending to line him out about being late.
As I opened the garage door I was greeted by the overturned linen basket lying on the floor and clothes cascading from it.
I stepped over the dirty clothes awaiting washing and reached out intending to tap on the back passenger seat to get Dales attention.
The sight I witnessed from the back passenger window made me halt abruptly before rapping hard on the glass and I quickly realized what was keeping him so occupied.
My horny stepson was slightly reclined in the driving seat with his manhood on full display, the garage lights glared brightly.
I could clearly see him constructing some kind of ligature first to his cock and then to the steering wheel, now more than inquisitive I carefully inched toward the vehicle.
Although totally unaware of my presence I could clearly see my stepson with his Jeans and boxer shorts down past his knees and quite clearly caught in the act of a pending masturbation session.
The voice I had heard previously must have been him expressing is sexual needs because all I could hear now was sexual obscenities and him arousing himself with dirty talk.
As I approached with caution, I saw him squeeze some type of lubrication onto an already generously pre cum coated spongy cock head.
As his hand pursed over to liberally apply the lubrication he moaned, he gave a few fingertip wipes up and down and surrounding his flesh so as to coat his entire length.
Tracing his index finger from base to head and swirling his finger in another glob of pre cum now oozing from the slit, I heard him say "there you are mummy," I froze when I thought he was talking directly to me.
It took me a few seconds to realize he was fantasizing in order to arouse himself further. I inched further forward and witnessed him searching the passenger seat and pickup a piece of material.
I stepped a little closer to make my view much clearer, I knew that I was in for a real treat having always had a fetish for male masturbation I soon found myself becoming increasingly aroused so much so that my pussy oozed at such an erotic scene.
I often masturbated to sights of a men jerking and exploding on my computer, my husband regularly performed this sight for me too knowing that it made me very lusty.
Finding this wonderful sight was no different, despite him being my husband's son, I saw nothing wrong in fact I saw it as an added bonus.