After Amy's glorious experience with Samson, the German shepherd that lived next door, she just had to get her own dog. This was too good to be left to chance engagements. She knew that her neighbor would get suspicious if she asked for Samson too often. Even if she found her own dog she still planned to have sex with Samson when she could. She wanted just the right dog. He needed to be very loving, well equipped and most of all, he would respond to her when she wanted him or vice versa, which she figured would be every day after the fucking she got from Samson. She consulted some of her Internet friends that first introduced her to dog sex. They gave her some hints, but they agreed that she should try out several dogs until she found just the right one.

So that night she started going through the yellow pages looking for kennels. She made a list of the ones in the area. The next day she started calling looking for the breeds she had gotten from her friends. Of course she already knew that German shepherds were a potential. But she just had to find the right dog. During the day she made calls, off and on as she did her work.

The tension was mounting as her work interfered with her search. She could feel that her red cotton panties were squishy wet with her juices in anticipation. Fearing defeat, She spent her entire lunch hour making calls. She was getting really frustrated when finally She located a kennel with a German shepherd about 2:30 in the afternoon. Since the dog was fully-grown they agreed to let her take the dog home for several days before she had to commit. She left work full of excitement. Since talking with the kennel about Jack, she was constantly wetting herself in anticipation of the evening's events.

Jean, the kennel owner, said that Jack would be an excellent dog for a single woman. A family that was moving overseas gave him up. The dog was large for a shepherd weighing approximately 160 pounds. He was not a fat dog she explained. He is long legged and full-bodied with a deep chest. Obedient, in good health, and strong. The description of Jack floated through Amy's mind all afternoon.

When she arrived at the kennel, Amy was nervous and extremely excited. She went into the office; met Jean and they went into the kennel to get Jack. Along the way to Jack's cage she keep her eye open for other breeds. She didn't see any other large dogs in the kennel. When they got to the cage she immediately liked Jack. He was light tan, almost cream, with black trim. Not so much as to make him look dark. She couldn't tell how he was hung, but that bit of information would come. The dog warmed up to her quickly during the few minutes it took to learn his routine, purchase some food he liked and fill out some paper work. Jack was staying at Amy's side without any coaching. As they left, Jean said that Jack likes women and she was going to be sorry if she took Jack. Amy could detect a certain twinkle in Jean's eyes when she spoke about Jack. Maybe he was getting some extra training.

They got home in the car just fine and went in the house. Amy felt lucky that she already lived in her own home and wouldn't have to move to keep a dog. She would have to put up a fence in the backyard though. She fed Jack and they went for a long walk. Jack stayed by her side without a leash and responded to Amy's every command. So far she liked Jack, but the real test would come over the next few days.

She had worked out an evaluation scheme she would play out with every dog until she found just the right one. The first night she would be indirect about the sexual attraction. The second day she would be the aggressor and the third day would be the dog's turn to take advantage of her. Amy's plan called for her to take a shower, get into her sleeping clothes, get her pussy wet and just sit with the dog and see how he responded.

She got out of the shower started toweling off and her pussy was immediately wet with anticipation. When she entered the bedroom, Jack was at the window looking into the back yard. When she appeared he turned his attention to her. She thought that he could already smell her wet pussy. She led him to the living room, turned on the TV and sat on the couch with her legs open. She could smell her own odor almost immediately. She was within days of her period and her odor usually got stronger as the time approached. She didn't want this to interfere with her evaluation, but she just couldn't wait any longer to get started.

She didn't request that Jack get on the couch with her; she wanted to see what he would do without any coaching. He moved close to her staying on the floor. He whimpered as he got closer to her and her smell really hit his sensitive nose. Jack laid his head on her bare leg with his nose pointed directly at her wet spot. She could hear him taking deep breaths; just taking in her scent. They stayed in this position for an hour while she watched her favorite programs.

When the last one was over she went to the bedroom and Jack followed. She got ready for bed, stepped out of her panties, dropped them on the dresser and got in bed. It was summer, so she slept without any cover. She was still wet when she crawled into bed. Amy really wanted Jack, but her plan called for the dog to make the first move on the first night. So far nothing much had happened. It took her awhile to begin to fall asleep.

Just as she was floating out of conscientiousness, she heard Jack move. It took her a few seconds to come back to life, but when she did Amy could see Jack taking deep breaths into her panties on the dresser. She called to him and he came up onto the bed. Jack lay down beside her and whimpered. She petted his head and spread her legs so that her odor would hit his nose. When it did he whimpered again and moved down so that he could smell her essence.

She rolled into him putting her mound right in his nose. She propped open her legs and he began to lick her wetness. He had a really good tongue, but the angle was wrong. So she slid around in bed without loosing his tongue till the angle was just right. She had a strong orgasm within minutes and knew she wanted more; she wanted him deep inside her. She pulled on his head. Jack rose and came over her. He licked her erect nipples as she caressed his erect cock. It was a good size, but not quite as big as Samson.

She rolled over and lifted her hips under him. Jack moved forward finding her wetness on the first stroke. She was filled with ecstasy as Jack entered her. Amy came several times before she felt his knot start to grow. She placed her hand around his cock at the right moment and took all of his cum without allowing him to get locked up. They parted and slept the entire night side by side. She liked his cum and didn't clean anything up.

Her work alarm woke her out of a deep sleep the next morning. She immediately wished that this could be the weekend. It was Friday, so the next two days would be theirs. She had a smile on her face all day. She couldn't wait to get home to Jack. She daydreamed constantly about what the next two days would bring. She hurried through the grocery store and headed for home. After last night, she didn't want to leave the house all weekend, giving her evaluation plan a full 48 hours.

The second day in her plan called for her to take more of the initiative. So they had supper and went for a walk just like the night before. As they walked, she pulled his nose close in to her and let him have a sniff. Amy had on her sheer tight jogging shorts with no panties. Along the path she walked into the darkness and put Jack's snout squarely into her mound. He licked furiously at her mound. He stood up on her shoulders and whimpered for more. She teased at him all the way home. She had him pretty bothered by the time they reached the back door. He mounted her when she bent over to take off her shoes at the backdoor. She felt his sheath and his cock was stiff and poking out the end.

She removed her shorts and top. Jack followed her all over the house. He was tall enough to stick his snout right into her pussy and lick at her. He was really getting worked up. She went into the bedroom, and got onto the bed. Jack was beside her as she did. He took every chance he had to lick at her pussy and even mounted her from behind as she walked to the bedroom. Amy asked him to get down and he obeyed. She got on the bed and he lay beside her just like the first night.

She opened her legs and he moved in to lick her with his glorious tongue. At the right angle, he could enter her and caress her internal erogenous zones. She moved her hips in a circular motion increasing the depth of his plunges into her cavity Amy had an intense orgasm. When she came down from the high, She had him lay on his side. Amy caressed his cock. It extended out of his sheath almost immediately. His breathing increased and she could feel his knot enlarging as she took him into her mouth. His knot swelled instantaneously and she felt his orgasm start. She took all of his cum. It was hot and tasty. The volume disappointed her though. He didn't have nearly as much as Samson.

She hadn't thought about it before, but Samson was becoming her standard to measure all other dogs against. What was it about Samson that she wanted in her own dog? She lay beside Jack quietly while he regained his strength and his knot subsided. She suddenly realized that she had to lock with her mate. She really enjoyed the fullness in her body when she locked up with Samson. She was turned on by the stretch her pussy had taken. The feeling of all that hot cum staying in her pussy for more than fifteen minutes while they were tied together was glorious. She also like caressing Samson as they waited and having him lick here nipples and face.

When Jack had regained his strength she went at him again. This time she went down on him first. She got him erect and turned onto her back. Jack moved in licking her nipples and mound. She slid to the edge of the bed and got Jack on the floor. Jack mounted her from the front, missionary style. Entering her with ease, he started long deep strokes. She could feel Jack's Knot start to swell. She moved into him making sure that she trapped his knot inside her. He lasted along time before he had an orgasm. Amy had several glorious orgasms while he pounded her cervix with his deep thrust coupled with the filling his knot gave her insides. His first orgasm was violent lasting for a long minute. She used her pussy muscles to milk Jack of all his cum. She was on fire.

Jack got still resting on her chest and she followed his lead. She felt him slip out almost immediately. She was very disappointed. Jack was such a good lover. His physical size fit well to hers. She liked that he was tall enough to easily stick his nose in her mound and could put his legs up on her shoulders and look her in the eye. But this was an absolute requirement in her mind, so Jack wouldn't do.

The next morning she started calling other kennels. She located a Great Dane that sounded like he had potential. She took Jack back to the kennel. He didn't want Amy to leave him and got on her shoulders and licked her face. She liked him too, but he just wasn't the one. Jean didn't seem to be displeased that she brought him back. Amy left with a strong impression that Jean and Jack had experienced each other on numerous occasions.

Amy headed across town to the Great Dane. She still had the rest of Saturday and Sunday to try him out. Duke was huge compared to the Shepherds. Standing, his back was even with her waist. He was very affectionate and loving. Amy started her routine with Duke immediately. After her shower they went into the living room to watch TV. Duke could smell her and followed her to the couch placing his face in her open legs. He immediately started breathing in her odor and licking at her cotton panties. She was wearing black tonight. She usually did until she started her period so that she didn't stain her light colored ones.

She pulled the panties to the side so Duke could get at her directly. His tongue went to work entering her pussy several times. This led Amy to an orgasm. As soon as she could get to her feet, She led Duke to the bedroom. She dropped her nightgown and panties to the floor and lay on the bed. Duke slipped onto the bed and started licking at her mound and then got on top of her licking and nibbling at her erect nipples.

She slid down under him and started stroking and kissing at the open end of his sheath. She took every inch of his erection in her mouth as it protruded through the sheath. It wasn't long before his tremendous cock was fully extended. She guessed that he was at least ten inches in length and two inches in girth. He was really big, but Amy didn't hesitate to turn over and raise her body to his erection taking in the entire length of his shaft from behind.

Duke was a strong dog and could easily bury the entire length of his cock into her flaming pussy. Amy was aware that she would have to back away from him as his knot grew to guard against being locked up this first time. She wanted to be locked into him from the front so she could enjoy the intimacy of this time together. She was really enjoying Duke and didn't want to disappoint him, so as his knot grew she let it go in and out of her. She made sure that it was out before he came. His bursts of cum were strong. She could feel the heat of his cum go deep even though he was not pressed against her cervix. She held him inside for as long as she could.

When Duke pulled away, he cleaned her up with his tongue. Amy fell asleep with her arms wrapped around Duke's chest. She really liked going to sleep with someone else in her bed. She fell asleep immediately. The next morning they had breakfast and went for a long walk. Duke stayed at her side and kept sniffing at her crotch. She decided that she would return home, get naked and start her aggressive testing right away. She was going to spend most of the day out of the house, but his sniffing was turning her on.

Amy took all of her clothes off upon entering the back door of the house. She noticed right away that she had a discharge from her pussy. It was a mixture of his cum from last night and a faint pink. Her period wouldn't start right away, but She knew it was close. Duke could sense it too and was at her sniffing and licking. Amy made it to the bedroom and positioned herself on her back at the edge of the bed, feet on the floor.

Duke rose between her legs and moved into position. Duke entered her as he rose. As the night before he was huge and stroked her long and deep. She really enjoyed his fucking and hoped that his knot would fit. Duke's power over her was exciting. She felt he could dominate her if he wanted. That scared her and at the same time added to the excitement of the moment. She wanted all of him.

Tilting her pelvis upward into his lunges, she could take the entire length of his enormous cock deep into her pussy. She could feel the hole in the end of his cock slide onto the protruding entrance of her cervix. Amy felt his knot growing with every stroke. She loved the feel of it sliding in and out of her pussy with each lunge of his body. The top of Duke's knot sensuously stroked her clit as it went in and out. She had several multiple orgasms. She didn't think she had any more to give only to recover and rise again to a fitful climax. Duke was doing a job on her and she loved every minute. She was absently enjoying his knot stoking her clit when she realized that it would no longer fit into her pussy. Amy was deflated. She had missed her opportunity to lock up with him. She wanted him this way so bad she dropped to the floor halting the action.