Mandy peered at the currying brush she'd just dropped inside Widowmaker's stall.

Widowmaker, though he was perfectly nice to her, got his name from his propensity to kick and his stall had been equipped with plywood on the slats to keep him from kicking them out, or kicking through them. And now the brush she needed was inside his stall. Widowmaker stood placidly, facing her, waiting for her to feed him another sugar cube or apple. She'd been winning him over bit by bit ever since she'd arrived on her uncle's ranch for the summer. In just two weeks she'd managed to get the horse to come up to her whenever she came into the barn. He was her special project.

She couldn't just open the gate and get the brush. To Widowmaker, an open gate was an invitation to run, and he was pure hell to catch, once he got loose. He was a wild Mustang her uncle had bought at a government auction just before she'd come to the ranch. The very first thing she'd been told was, "Don't open the stall that the Mustang is in." She peered down into the dark stall. If she leaned over the top of the gate she might be able to reach it. She had one apple left. She took a breath, gave the horse the apple, and while he was munching on it, she put her waistline on the top of the gate and leaned over, stretching down.

She was wearing an old pair of shorts she'd found in the bedroom her Uncle Bob had given her. They were much too big for her, but she liked them because they had all kinds of pockets on them. So she cinched a belt through the loops to hold them onto her slim waist above the recently developed swell of her hips.

The tails of the short sleeved shirt she'd also found in the closet in her room were tied across her stomach just under her breasts, and she'd buttoned two of the buttons to cover her braless breasts. That was one of the things she loved about coming to Uncle Bob's ranch. She could dress comfortably. Besides, Uncle Bob looked at her like she was a woman. He always had, commenting on how nicely her breasts were developing, or how sexy she looked in this outfit or that one. Ever since she'd turned thirteen he'd been the primary source of compliments about her femininity and appeal.

She overbalanced, and began to fall into the stall. She managed to get her fingertips onto a stall slat, but she could only hold herself, and was not able to push herself back up. It didn't exactly hurt. She only weighed 116 pounds.

But she felt stupid, and was worried that the horse might do something to her if she didn't get back up and out pretty soon.

It was just then that her uncle walked into the barn. The first thing he saw was a female bottom and two long slim legs waving at him. He walked over to where she was stuck and admired her butt. The legs of the shorts were loose and he could see clear up to her ass cheeks. He could see just the barest hint of pale blue high-rise panties and licked his lips at the thought of what those panties were cupping. On impulse he slid his hands into the open legs of the shorts and squeezed her glutes.

"Hi, Pumpkin!" he said.

Her legs kicked spasmodically and she yelled, "Help! Is that you Uncle Bob? I'm stuck and I can't get out."

It was right about then that Widowmaker, having finished his apple, wondered what the cloth of her shirt might taste like. Luckily, his teeth grabbed for the collar, instead of the cloth stretched across her back or he might have hurt her. With that in his mouth, he gave a jerk and there was the sound of tearing cloth. Ironically, her uncle's hands inside her shorts stabilized her lower torso, and Widowmaker's jerk helped lift her upper torso, and she was able to stand back up with relative ease.

That left her pressed against the gate by her Uncle's big rough hands, which had jammed even further up into her shorts.

She looked at the horse and was mildly shocked to see most of her shirt in his mouth. He had, in fact neatly ripped the entire back of her shirt out of the garment, which was old and thin.

Mandy turned her head and saw her uncle behind her. She realized where her uncle's hands were about the same time she felt the front of the shirt begin to slip down her arms.

She crossed both arms over her chest and squealed, "UNCLE BOB!"

Bob, who could not believe where his hands actually were, had the conflicting feelings of profound enjoyment at the feel of her firm teen butt in his hands, and embarrassment that she knew where those hands were.

"Um ... sorry, Pumpkin," he said, trying to pull his hands out. He couldn't though, because her weight was pressing on them as she leaned back. "I ... ah was trying to catch you and ... I guess things didn't work out just right."

"Your hands!" she moaned.

"I know, baby" he said, pushing on her ass, trying to get her to stand up on the slat and lean forward so he could get his hands out. "Pull yourself forward," he said.

Mandy, used to doing what she was told, did that. She took her hands away from her slipping shirt and pulled, leaning forward a little. What was left of the shirt slid down her arms to her wrists. She felt her Uncle's hands slide back out of her shorts and then immediately grab her waist. "I've got you now," he said, and lifted her off the stall gate. As her hands left the gate, Widowmaker neatly nipped the rest of the shirt, pulling it off her arms. When her feet hit the hay, she was topless.

"Ohhhhhhh," she gave an embarrassed moan, and her hands came up, each one covering a nipple.

"My my!" commented her uncle as he turned her around to face him. "Are you OK?"

"I think so," she gasped, "but my shirt's gone! I think Widowmaker ATE it!"

"And here I thought it was going to be a boring day," quipped her uncle. He was leaning sideways, looking at her exposed skin, looking for injuries. Belatedly he said, "I think I love that horse."

She tried to be indignant at his lack of concern for her predicament, but it was impossible. He clearly wasn't trying to see her naked 16 year old breasts, and was concerned that she might have been hurt.

"I'm OK, Uncle Bob. He didn't hurt me. But I can't go out in the yard like this!"

"Well, why not?" he said, finally convinced she was truly unhurt. "It's just you and me." That was true enough. He ran a small operation and needed only occasional hired help. There were some high school boys in families on nearby spreads who came over to help when it was needed.

"But you'll see my boobies!" she whined.

"I LOVE that horse," joked her uncle.

Mandy, rather than getting upset, decided to tease her uncle. She'd just embarrass him! She dropped her hands, exposing her succulent teen titties and said, "OK, then, let's go."

Bob swallowed. Her breasts were perfect. Nice round globes with up thrust strawberry colored nipples. Those nipples were firm and jutting too, as if they were turned on by being exposed to the air. He felt his face getting red and had to control his urge to tweak and suck those nipples.

Mandy felt a rush of heat flow to her belly at the way her uncle was looking at her. He looked ... hungry. She almost covered her breasts again, but stubbornness won out and she teased him.

"What are YOU looking at Uncle Bob? You aren't one of those perverts are you? I'm your niece, you know! I don't think you should be looking at me like that." But she giggled, removing any belief that she was upset over the situation.

"Girl," he said, his voice low and raspy, "You could just flat kill a man, walking around like that. You need to get a shirt on and I'll just give you two hours to do it, understand?"

She laughed gaily and held out her hand to him. "Uncle Bob! You are SUCH a flirt. I won't ever understand why you haven't gotten married. I bet the girls chased you for sure."

The girls HAD chased him, and still did now and then. But what he had to offer wasn't much in his younger days, and now that he was older and the ranch was doing well, he'd gotten used to being alone. There were a couple of women who went out with him now and again, mostly for the sex, because he was GOOD in bed, but they didn't want the life of a ranch wife. The rest of the time he just beat off when he got horny. That was quick, easy and safe.

"I don't want them old cows," he drawled, still looking at her appreciatively. "I want me a young pretty filly like you. I do believe them's the prettiest titties I ever did see."

She kept her composure, but only barely. She knew he meant it, and that made her pussy wet. She hadn't had a wet pussy since she found that video tape in her brother's closet and watched a young girl getting her socks fucked off by an older man. "Well, you can't have me," she pouted, hands on her hips. "I'm your niece, and that means no hanky panky." She grinned and jutted her breasts out at him, teasing him unmercifully.

"My head knows you're my niece," he said patting his head. "But my other head just sees a beautiful, sexy woman." His other hand grabbed his crotch. He saw her hesitate, unsure of how in-control things were. He decided not to uncover his crotch, which would reveal his bulging jeans. He used the hand on his head to grab hers and said, "But my stomach is yelling that it's time for lunch. Let's go!"

Mandy gasped as her uncle pulled her hand. The touch of his skin made her feel hot. He was so sexy when he teased her like that, it just took her breath away. And touching himself like that! Her knees felt wobbly.

He led her out of the barn and into the sunlight. He resisted staring at her half naked body, but snuck quick peeks, wanting to be able to remember it when he beat off during nap time. Bob took siestas, but called them 'nap time' for fun. They got to the house and she scampered off to her bedroom. He sighed, wishing he could see those fabulous breasts again sometime.

He got his wish as she reappeared, still topless. "Uncle Bob? There aren't any more of your shirts in my closet, and I like wearing them cause they're so nice and soft and cool. Have you got one in your room I can wear?" He told her to take her pick from his closet. She came out with one and he sighed again as she put it on, covering up her breasts. She tied it in the same way as the previous shirt, but did not button any of the buttons. The resulting view of the insides of her creamy breasts kept his prick hard all through lunch. She never asked him why he stuck his hands in the leg holes of her shorts that morning.

Bob made it through lunch, but the ache in his balls was beginning to build.

"Nap time," he announced. He didn't make Mandy take naps, of course, but she knew of his habit. She usually watched a movie on TV, or read a book or played solitaire or something in the cool of the big house. She sat down while her uncle went off to take his nap and picked up the book she had brought with her.

She was almost finished. In fact, she found she only had three more pages. The rest was all lists of characters and biographies and stuff she wasn't interested in. She needed another book. She remembered seeing one in her uncle's bedroom when she went to find another shirt. It was on his dresser. If he was already asleep she could just sneak in and get it without bothering him. She tiptoed up the hall to his room. the door was closed, but the handle turned in her hand silently. She pushed the door open a little and heard his raspy breath. Thinking he was snoring, she pushed the door open and walked in.

He wasn't snoring. He wasn't even sleeping. He was beating his naked meat just as hard and fast as he could, his eyes screwed shut, visions of Mandy's perfect teen tits in his mind. He lay flat on his back on the big bed, and even though his hand was wrapped firmly around his boner, she could still see a lot of it. He wasn't circumcised, and his fleshy hood was whipping back and forth, covering and then uncovering the glans of his cock. She knew she should turn around and leave, but something right behind her belly button wanted her to stay and watch. She'd never seen a real live penis before, but it looked pretty much like the one on the video tape she'd watched. She knew from that tape that it would squirt white stuff out when he had his orgasm.

She wanted to see that.

She felt naughty, and she had no idea what she would do or say if he opened his eyes and saw her standing there. Since that might happen any minute, she decided to try to be less conspicuous. She slipped back out through the door, but peeked around the edge. She was none too soon.

Her uncle groaned and his hand flew faster as he moaned something. She leaned further into the room and plainly heard his voice. "Maaaaannnnndddddeeeeee," he moaned. Then it happened. His cock started spewing. But it wasn't like the video tape at all. On the video tapes the guy shot drops of stuff that went five or six inches and then landed, usually on the woman's stomach, or maybe her back. Then the man in the video rubbed the tip of his cock around while it oozed more white stuff.

But Uncle Bob's penis shot his stuff clear up in the air!

It went at least two feet up and it was a long, thick white ribbon! Then there was another one! It didn't shoot quite as far, but it was still a stream, and not just some drops. She was amazed at how much there was. She knew enough about sex to know that when a man actually fucked a woman his penis would be inside her when that happened, and she couldn't believe that all that thick, sticky looking stuff could fit into a woman.

And, he had said her name!

He was thinking about HER while he masturbated! She shivered. She'd known for a long time that he flirted with her, but this was different. That, plus the sight of a man's sperm, made her pussy clench in a little spasm that made her bend over. Her pussy spritzed a little wetness that she knew was soaking her panties.

She backed up and closed the door silently before he saw her.

As she stood in the hall she realized she was panting. She felt edgy, anxious, somehow unhappy and she didn't know why. She wanted to see him again, that was for sure. She found that stiff male thing he played with irresistible.