Duke couldn't believe that she moved away. He was growling and sniffing and licking her essence. She calmed him down as best that she could. In a few minutes she could see his huge knot go down by half so she got on the edge of the bed for him to continue. He followed her up to the bed. As she arched up from the floor toward his body, Duke thrust into her with a long forward motion. Duke wasn't about to let her get away this time. He locked his front legs around her waist. She could feel the strength in his legs gripping her and holding her to him.

Amy knew she wouldn't be able to do this to him again so she concentrated on keeping him deep inside her to capture his knot as it grew. She started feeling it grow so she moved closer to his body relaxing her legs to use her own weight to stay buried to the hilt with his cock. She began to feel the same full sensation that she had with Samson. The pleasure of being locked up with Duke began to rise in her mind. Suddenly she felt the knot slip out. She relaxed her legs trying to use her weight to re-establish contact with him. No matter how hard she pushed down on his knot she couldn't force it into her. His knot was just too big for her.

Amy reasoned that as it got bigger her pussy wouldn't stretch enough for it to stay inside. It just popped out when it got too big. The fullness that she felt before the knot slipped out had her really turned on. She continued to thrust heavily at him until he dumped a huge load into her pussy. When he pulled his tool from her, his cum gushed out and then dripped from her pussy. When she cleaned it off the floor, she could see her redness mixed into his juices.

She took a shower and took stock of where she was with her selection process. She realized now that Duke was too big. She really like his equipment and the hard fucking such a large dog could give her. She could be as physical as she wanted with him and he seemed to love every minute of it. She would have to find the right one. She would have to keep looking on Monday.

Her period started that evening. Duke wouldn't leave her alone. She realized that her earlier premonition that he could dominate was about to come true. He followed her everywhere she went in the house and mounted her whenever he wanted. She didn't have the strength to resist. She had to let her period leak down her legs because Duke kept mounting her so often she couldn't wear any protection. It was scary not being in control of the situation, but she really liked being fucked hard by his huge cock. She had never had this kind of experience with a man. Dogs were the best. Several times he came over her while she was asleep, wrapping his legs around her waist. He manhandled her into position entering her, driving at her pussy till he shot his full load of cum. Then he would go back to sleep beside her. He mounted her at least six times that night.

The next morning she needed the day to get Duke back to the kennel. He was already growing restless and sniffing at her as she prepared breakfast. He wouldn't even eat his food opting to keep his nose in her crouch. She would give him a goodbye fuck to calm him down and take him to the kennel. Duke had the same idea, but didn't know he was leaving. She went into the bathroom to clean up from the long night of fucking. As she walked out he rose up on to her shoulders with his front paws and pushed her onto the bed. She was dry, but after a few strokes his precum was all over her and he thrust his erect cock into her pussy. His stokes were rapid, jerky, and hard. He was at her for several minutes before he retracted his penis from her body, drenching the floor with his cum.

She lay underneath him as he rested. He must still be worn out from last night she thought. She was sore, but she was glad that she had satisfied him that much. She rolled over to get to her feet and he wrapped his strong legs around her waist. He wasn't finished and she wasn't going anywhere. He pulled her up to him abruptly with his strong front legs and entered her from the rear hammering at her pussy. It was all she could do to get her hands down on the floor and support the two of them while he had his way with her again. She knew that this would happen every time she had a period. This concerned her. He kept up the thrusting for over five minutes, his knot banging against her cheeks as he slammed his entire rod into her repeatedly.

Finally he squeezed his legs tightly around her and thrust deeply into Amy shooting his entire load deep into her pussy. It felt hotter than normal. She was frightened by the events, but she enjoyed every minute of his lovemaking. He let her go, so she went to the bathroom to get ready to leave with him. It took her about fifteen minutes to get cleaned up and do her hair.

She entered the bedroom to get her cloths and he was on her again. He pushed her down onto the floor. He licked at her pussy. He then tried to enter her, but he was too tall and couldn't get in. He stood over her and wasn't going to let her get away. There wasn't anything that she could do. He was in control again. She reassured him and moved to the edge of the bed. He stayed over her the whole way and as she slipped up on the side of the bed he locked his front legs around her waist. He shoved her the rest of the way onto the bed with his strength. After a few strokes his huge cock filled her again. She hoped that this time would satisfy him enough that she could get on her cloths and get him to the car. She arched her back and relaxed her legs to make sure that he got everything she had to offer.

As before he kept her in his grip and with one powerful lung filled her with his cum. When he left her, she quickly cleaned up, got on her cloths and led him to the car. Duke slept in the back seat on the way back to the kennel. He wanted her again as they got to the kennel, but she got the handler to help her get him out of the car. With a little explaining for bringing him back early she left. On the way home she daydreamed about Duke. She was very sore from his workouts. She liked the feeling of being dominated, but with his strength he could control the entire situation. She had to find a dog between Duke and Samson. She went home, cleaned up and started down her list again.

Kristy answered her first call. Amy explained that she was looking for a large dog something from a shepherd to a Great Dane. She explained to Kristy that she had tried out a Shepherd and a Great Dane. Neither had worked out. Neither had worked out. Kristy said that she had several dogs to chose from and if Amy came over she would let her look around. Maybe there was one that was right for her.

When Amy arrived, they went into the kennel and started the search. They looked though some pure bred dogs and nothing struck Amy's fancy. So Kristy went to the part of kennel where there was a big holding pen for strays and mixed breeds. There was everything from very small dogs in the pen to a couple of mixed shepherds, a Great Dane, and this large black Husky. Amy was mesmerized by the way the Husky looked at her. He was not overpowering like the Dane but looked like he could dominate the situation, given the chance. Kristy said Max was quite well mannered and the leader of the pack.

She wanted to take him home, but knew that with her period she would screw up my selection process. She explained my situation to Kristy. She smiled and said she too aroused the animals in the kennel when it was her time of the month. Kristy said that she would hold onto Max until the following Friday. Amy would be finished by then.

The rest of the week went by slowly. Amy kept having dreams about Duke and thought several times about getting him back from the kennel. But that stare from Max kept haunting her. By Friday She was hoping that Max would be the one. Amy left work early and went to the kennel and picked him up. He rode in the front seat. At each light he would gaze deeply into her eyes. This sent chills up Amy's spine.

Amy liked what she saw in Max. He was both strong in a physical sense as well as his character. Amy got home and started her evaluation routine. Supper, a walk, and a bath just like before. When Amy got to the couch, Max was at her side. He was a complete gentleman, sitting beside her. He was very affectionate to Amy. She liked him and snuggled with him while they finished watching her favorite programs.

After they were done, she led him to her bedroom. He followed her onto the bed and lay down beside her. She opened her legs revealing her essence. The smell hit his nose immediately. Max wined and stuck his nose close to her slit. Amy rolled into him keeping her legs spread apart so that he could lick her. He stuck his nose into her and took long deep breaths. It was almost like he sighed when he removed his nose. He returned to her pussy giving her long slow kisses with his tongue.

She stoked him gently fondling his cock until he started to get an erection. She moved over onto her back and pulled at his head. Max responded by switching ends and standing over her. She looked into his eyes and could feel his strength. She moved under him and took him in her mouth. His body stroked in time with her motions. Soon he was fully erect and she rolled over onto her stomach like she had with Duke and raised her body into position. Max positioned himself powerfully over her awaiting pussy. He slid the first two inches of his penis in and stood there with a little quiver pulsing inside the entrance to her pussy.

She moved into him signaling that she wanted the entire length of his shaft. He sharply thrust forward at the same time as she thrust backwards. They met at the bottom of her love canal. He stretched her to the fullest extent possible. Amy was in ecstasy filling almost full with his length and breadth. This quickly became a mutual love feast. They moved into each other slowly at first and then increased the intensity. He seemed to sense her approaching orgasm. Max worked to build her excitement to a lustful conclusion and then would coast leaving her hanging on the verge. He would then low down taking her away from orgasm and then build her again. They were very good together. During one of their resting moments, she rolled over on her back and guided him to the edge of the bed. She slid off the bed first and then brought him down on top. His erection grew immensely as Amy made this move. When he thrust his penis into her wet pussy, he completely filled her. He licked her erect nipples and moved up to stare into her eyes.

She thought that Max could see into her soul. They gazed at each other as Max passionately pumped his body into her. As his knot started to grow. Even though this was the first time, she couldn't resist the temptation to lock with him. Max was just too god. Amy relaxed her legs and took him deep inside. She looked straight into his eyes as his knot filled her to the very last of her ability to stretch for him. The larger it got; the more she relaxed her legs forcing him to stay inside her. As it grew to full size, she clamped down with her entrance muscles sending his cock deeper into her pussy. Finally he was wedged against her cervix. The hole in his penis had fully enshrouded the entrance to her cervix. She had clamped the lips of her pussy down onto the shaft of his cock on the backside of his knot. There was no way he was coming out until she released him. This was definitely what she was looking for.

Samson had filled her, but Max had taken her to the very limit of her physical ability. They thrust at each other for what seemed like hours before His hot cum filled her. She could feel it completely fill her cervix and ovaries. Her cervix bulged like a filling balloon. Max had a huge orgasm first. His hot fluid sent Amy into a tremendous pulsing orgasm. Together they rode the waves of their lust. As she climaxed she knew that Max was her choice. She reveled in their intimacy as they laid on the edge of the bed locked together.

Max was enjoying this time as much as she was. He moved several times just to keep his knot erect. Amy communicated her satisfaction to him by intermittently clamping down on his penis and milking him of his cum. Neither one of them wanted the moment to end. When the release came she caught his cum in her hand and licked up every drop. His cum was wonderfully satisfying to her taste buds. So far Max was passing her test with flying colors.

Amy new Max was the one, but wanted to continue the test just the same. She had been turned on to the thought of testing several dogs before she made her choice. She spent time devising her test to bring out all the pleasures that a dog relationship could deliver. She couldn't stop now. As Amy laid between Max legs the thoughts of testing went through her mind. She just couldn't wait to get started on the second day. Amy had to take Max all the way through it just to be sure. There were two days left! She settled down next to him and they both slept to the next morning.

Max woke her early the next morning. She let him out and left the door open for him. By the time she was fully awake, he was back in bed beside her. As she lay there petting and rubbing her nude body on his fir she began to think about his size. From last night she could tell that his body was long enough to enter her and look into her eyes at the same time. His legs were long enough to put him at the right height to enter her easily. She knew that his penis was large, but she hadn't gotten a look at it. So she stroked him to an erection.

Max rolled onto his side, as if he understood that he was being examined. His penis was nearly as big as Duke's was. She knew from last night that it split her lips gently as he thrust into her. It was Blue to dark red in color with a nicely tapered end and large hole in the end. Duke's cock was blunt and poked harshly at her lips to enter her. She took it in her mouth and stroked back and forth till she could taste his precum. It was as good as she remembered from last night.

She snuggled with Max and then went to the kitchen for breakfast. They both ate and stared into each other's eyes. Max had a way of catching her gaze. He could look straight into her soul. It was almost like he could communicate with her in this way. She could sense the wildness in him. His cunning gave him an inner strength that she had never experienced in a dog before.

She dressed and took him for a jog. Max enjoyed his freedom in the outdoors. Amy was aroused by his show of kensmanship with nature. They returned home after about an hour and a half. The second day of the test called for Amy to be sexually aggressive. She would have him as often as she wanted. She wanted him a lot. She went to the living room and sat on the floor with Max at her side. She began loving on him. She caressed his body, groomed his head and ran her fingers along his underside. She began focusing her fingers on his sheath. It wasn't long before his penis started to protrude.

As she worked her fingers, Max turned into her and rubbed his nose on her breast. She took off her tee shirt and removed her bra. Max rubbed gently on her breast and nuzzled her nipples. For a dog, he really knew what to do. Next he moved between her legs. She shifted to open her legs. He just breathed on her mound arousing her tremendously. He nipped at her tight jogging shorts. She removed them and lay underneath him in a 69 position.

Amy took a cushion from the couch so she could easily reach him and took his erect penis into her mouth. Max was licking her wet pussy. She timed her motion with his rhythm and began taking almost his entire penis into her mouth and throat. She arched her neck backwards taking his thrust into her throat. As his excitement grew he began gently using his teeth on her inner pussy lips sending shivers through her body. When he did this she would take him as deep into her throat as she could. As she felt his knot grow in anticipation of his climax she accelerated her pulsations and drilled her tongue into the hole in the end of his penis. His body flexed with the pulses of her tongue in his hole. His body tensed and she took his load in her mouth. The warmth and taste of his cum sent her out of control reaching a strong orgasm under the caressing of his tongue.

They both rested on the floor recuperating for almost an hour. When she thought he was rested she started in on him again. She rolled him on his back and brought him to a tremendous erection with her hands. She straddled him and stroked her pussy up and down on his erect cock. She came to a glorious climax on his rod spilling her juices all over his sheath. She licked him clean.

He was still aroused, so she pulled him on top of her and took him from the front. He placed his paws on her shoulders and powerfully thrust his entire rod into her with abandon. His knot swelled inside her locking them together as he thrust the last time delivering a load of hot cum into her waiting pussy. They caressed each other until his knot released them. The feel of his knot completely filling her was almost more than she could stand. She ate all of his cum and Max cleaned her pussy with long deep strokes of his tongue. Max was passing her test. They napped and then went out again for a long walk. Amy took them to a park where they ate hot dogs and ice cream before returning home to complete the days testing. She took Max into the shower with her and they bathed together caressing each other. They both did things to arouse the other ending the shower when he mounted her from the front looking deeply into her eyes, communicating to her that he wanted her.