Lurking Behind A Woman Running - Part 1 of  2

Lurking Behind A Woman Running - Part 1 of  2
 
I am a seasoned long distance roadrunner, a healthy pursuit with more than the “expected” benefits.
 
I love running behind a woman. Looking at her bums from behind, wondering what underwear she is wearing, if any at all. I get so fucking antsy trying to catch a hint of the pussy outline. It spurs me on. It keeps me going. I love creeping-up on the unsuspecting woman, even though I know I risk her farting in my face. They say one of the joys of road running is the freedom to let fly at will, without a care. I am in a state of semi arousal whenever there is a woman running around me and, even if it’s a flabby granny hoping for a miracle repaired of her fucked-up anatomy. There is something about granny fanny flip-flopping around that makes my cock excited, especially when she is running. I love chubby, seniors anyway, anyhow.
 
On this Sunday morning, I was running the Indian Ocean Marathon with Jane, my lovely sister in Law. At the start I was running behind her, because the crowd was still thick so we couldn't run next to each other. Jane, being the stronger runner, and was pacing us as we negotiated our way through the legs, bums, and Tums and torsos. I kept my eyes on her bouncing gluts, defined through the ultra light material of her tights by the wetness which made the pants stick to her skin. And so we ran. I love running with Jane.
 
After the halfway point at Undulate Beach, I told Jane that I was going to stop to take a leak. She told me not to stop but to just, piss in my pants, while running on.
 
It’s raining so you will be dry by the time we finish the marathon. She said under her breath, quite innocently.
 
I protested that people would notice me pissing as I ran and this would be perfectly scandalous. Besides, I could even lose my running license. The rain was falling quite thick and the weatherman had predicted that the East Coast would have rain from Amanzimtoti to Mtunzini for most of the day. We were prepared to slosh along with soaked shoes, all the way to the end. I always enjoyed the Indian Ocean Marathon and the rain was not going to spoil my fun.
 
Let me show you how to piss and run
 
My brother’s wife offered.
 
Watch between my legs; keep your eyes, right there. She quickened her pace to be a foot or 2 in front of me, then stuck her middle finger firmly into the bottom end of her bum crack, from behind! I swear I saw her finger sink in, an inch or two.
 
I obeyed and trained my eyes at the top of her thighs in line with the lower folds of her bums. I had not seen it before but there was quite a bulge there and I could see the outline of her cunt lips sculptured out by the fabric of her tights. She always ran in tights, it was the fashion those days. There, before my eyes, froth bubbled out of her mound as my lovely sister in law started to urinate. This was followed by pulses of liquid, oozing out of her pussy and running down her bare wet thighs. I swallowed hard as I realized what an awesome sight this was. My dick was instantly up and pulsating, the fastest I have ever known it to grow. What an instant bone generator!
 
My sister in law is very proper of manner, in her husband’s presence. But when we are alone, she is very sweet, open and often provocative. She is not your lingerie model-type but she does have a lovely African booty, somewhat smaller than the average Zulu dame's, but big by international standards. She has miles and miles of well formed, somewhat muscular legs. She is exquisitely sexy looking despite her tomboy preference when it comes to clothes. I have waked myself silly, many times while looking at her caramel tone in one beach photo of ours.
 
You see, it’s quite easy and no one will ever notice. Now your turn she said looking at my bulging groin. Then she looked me in the eyes for a good 10 seconds and smiled.
 
You bladder must be quite full, I see you still get erections when you need to piss how sweet, still a teenager at heart, eh, Jim! As she kept grinning as we ran downhill, approaching the Undulate River Bridge.
Go on, let me see you piss she urged.
 
The truth is that my dick was too hard for me to piss without effort, and this lady’s seductive talk was not helping deflate my hard member. She complained that she couldn’t watch the pissing action and run, unless she ran in reverse. I suppose, it was only fair for her to want to see me piss.
 
I started to piss. Then disaster struck, as I started to fart, I always fart when I piss, I realized that the fart was coming out with some ‘solids’. I immediately squeezed my butt-hole sphincter shut. But I had to take a dump, immediately.
 
Shit Jane, I have to dump…now or risk having an accident along the way…I am sure even heavy rain won’t be able to wash that away I sheepishly stammered.
 
Jane gave a whole hearted laugh then stopped abruptly.
 
Sorry Jim, maybe it’s not that funny …well let’s see. If we stop for 10 minutes while you take a shit. We will have to increase our pace to 4min 15 seconds to finish sub-3hrs 40min. Let’s go under the bridge, there is usually no one there…I will stand guard
 
No, thanks Jane, you keep going, I don’t want to spoil your run… I will see you at the finish line.
 
I was too embarrassed to be crouching in the bush, shooting craps with my posh sister in law around. What if it was one of those real stinky one’s my girlfriend complains about every so often. But I had to go, so I ducked fellow runners going past and carefully went down the sandy bank and under the bridge with Jane in tow. In a minute flat, I had emptied my rectum, wiped my butt and was pulling my shorts up when Jane stood in front and looked at my still slightly swollen cock.
 
He is still a little excited about seeing Jane frothing on her cunt isn’t he! She giggled as she gave my cock a firm tug, with her soft right hand.
 
I was shocked. My dick started growing again, even faster than before. I looked at Jane’s eyes and saw a different woman. Her mouth was slightly open, her eyes narrowed and she had this lewd, leering attitude about her. I knew what it meant but I had no clue how to respond. My dick was now so hard I felt I could shoot-off any time now. Jane turned away from me and put her fingers in the band of her tights on both hips.
 
By nutbuster