...it was in the mid .to late 70s,.....we /( my family)..were traveling interstate,..an stopped at a highway / dinner,.reststop..area.to reul. an have lunch,..mum an the other kids headed into the dinner to order,..an dad refueled the car,..i was ,.shell we say .of a certain age that id heard about, an was discovering sex, id seen a few mags, of couples engaging in sex acts etc,..id also seen an was very keen to see again the round hole between stalls in the public toilets,(gloryholes)...i headed for the toilet out back at the truckstop .an ventured into the gloomy lite passageway that lead to the doorway into the mensroom.the door made a loud squaking noise as i opened it an entered the musky/ pissy smelling room...there was a long urinal stretching the lenght of the room on 1 side .. an about 7 cubiculs on the other,.men were coming an going..so i dived into the stall midway down the row,.an to my suprise there it was .....a well used looking gloryhole ..with stories .etc scribbled all over the inner walls of the cubical..the smell was heavy , after i removed my trousers an sat to pee..the door next to mine opened an then slammed closed .an there thru the hole i could see.a man preparing to take a piss, he stood there fumbling for a minute or 2,then pulled out this thickish black / brown looking cut cock .as he pulled it from its resting place in his undies ..he also pulled with it,a volume of black pubic hair that bushed about the base of the cock ,.the pants looked to be quite tight ,..so it made the cock flop out , an hang quite clearery,...i was in heaven .....a full grown mans cock .only inchs from me .taking a piss..an swaying to an fro as he moved about while taking his piss,.i sat an watched as he .stood an massaged the cock as he peed....he caressed an pulled it to an fro, ,once hed finished peeing he stood an vigorisy shook it .an stood there for the moment with it protruding out in front of him ,.with his balls,.all bunched up, under the now stiffing shaft,......my heart was beating so loud that i could hear it in my ears .an my hand shook so much as i lent forward ., toward the gloryhole,to get a better look, at the thick blackish /brown looking cock ..that was increasing in lenght as he fumbled with it ,..he coughed a couple of times ..an continued to fumble with his cock to my joy,.he turned ,..an aimed it toward the gloryhole ,..an stepped toward the wall.. my heart almost stopped beating as this oversized cockhead started to push its way thru the smallish hole in the wall..i sat listening to the scrapping sound, the cockhead made as it forced its way thru the hole..i was in total ore...as id never in my life touched a mans cock ,.let alone a cock that had hair around it,..the head popped thru the hole ,.then inch by inch it protruded into my cubical space .till it was fully hanging thru the gloryhole ..it hung there ..with a slight pulsating sessation..as i reached up to take hold of the slightly damp wettish cold head..it had a musky stail smell about it ...an it was then that i opened my moist mouth an took the head in slowly .....i sucked on the head for a minute of so .an as i did so .the cock sprung to life .an within seconds was standing straight up an looked to be too big for the hole as it grew thicker ...there was a reddish,stress mark around it where it came thru the wall.i was keen ...so gave it all i had ........clumsy as ,,,, but i sucked an sucked it .then it happened ........it just shot .an shot , an shot its streams of cum out toward me ...i didnt know he was ready to shoot an was fully sucking him .an the first shot of cum went deep into my throat... an tasted as salty as .....i pulled off the cock as it continued to shoot its cum onto the floor of my cubical.the cock by this time was swaying to & fro as it swung freely in front of me .with slimmy cum dribbling from its over gorged head ,.i rubbed my hand around the head to take the last of the dripping cum .an i heard him grunt .as he started to extract the cock from the hole .....it took a second or 2 as he pulled the over gorged cock backward thru the hole ,.the girht was much more than the size of the hole in that wall .so bit by bit he pulled backward .an seemed to wait as the cock decreased in size so he could get it out ,..so while he did that ..i quickly pulled up my pants an wiped my face to remove the traces of cum from my mouth .an headed out of that cubical .....i looked back as i exited the cubical an only the cock head was visable ..so it meant,he was due to come out ...i headed for the washbasins an prceeded to wash my mouth an hands ..an tryed to remove the smell of man from me .as i could still smell, the smell of man on me ,from what had just happened ..i heard the cubical door open .....then slam closed as i turned toward the outer door ....as i reached the outer door, an pushed it open,, i paused an looked back, to see what the man with the thick cock, looked like, .that i had just serviced..i thought he would be mexican or simular, because of the color of the cock ,.....but to my total horror, my father walked around the corner an walked toward the washbasins,.an proceeded to wash up ....i gasped .....that you dad ,,,,,WHAT..he reply ...WHAT ...ok..ok ..im coming, he replyed, ..i wont be a minute ..im just washing up .....he then said to me ...dont come in here ...its dirty...ill be out in a minute ..him not knowing that i was in there the whole time ...an that i was heading out ..not heading in ..... i headede out toward the car an got into the back ...an looked back towrd him as he started to walk toward the car ,...i didnt know where to look .i sat there an looked back toward him .....an as he got closer toward the car i could see the faint outline of the shape of his cock lying to the left ,..stuffed down the legs of his jeans ....he climbed into the car ...stared it .an drove off .....an to this day .....he doesnt know .that the thorat he shot his load into in that cubical back in the 70s was the throat of his very own son ............memeories huh ...... ,.. .....