The massive Rottweiler panted happily at Harper’s side as she walked to the front door and met the dog’s returning owners with a smile.

“Welcome back!” she called out happily and watched as Zeus ran to his owners and happily showed how much he missed them with his massive wiggle and puppy whines.

The older woman hugged the dog affectionately and smiled up at Harper.

“Thank you so much; as always, you’re a lifesaver, Harper.”

“Zeus is always a pleasure to sit for, ” Harper said with a casual wave of her hand. Not only Zeus but also the Cane family was a pleasure to work with. Their home, while not a full mansion, was definitely a multi-million-dollar one. And staying there for two weeks while they were on vacation was more than a simple job for Harper. It was like trading in a honda for a Lamborghini. But alas, she thought with a fond pat on Zeus’s head when he ran back to her for attention; it was time to return to her little Honda.

Giving Zeus one last hug and promising the Canes she would happily be in contact to schedule them back into her walk rotation once they were ready, she left the house.

Climbing into her bright blue Honda Element, she headed off to her next appointment. She was going to be sitting for one of her favorite clients for the next two weeks. A long-haired German Shepherd named, appropriately, Bear. His parents were going on a cruise, and Bear wasn’t allowed to come along on the ship.

So for the next two weeks Harper would move into their amazing penthouse and take care of the large dog for them. She arrived a bit early for the appointment, but she knew that would also give them more time to get ready, so she headed upstairs.

She waved casually at the doorman and the reception desk, who waved back at her and called out greetings. She was here quite often when she wasn’t house sitting to walk and take Bear out on adventures, so they knew her well. She was certain the Whitmores had already informed them she was staying in their place as well.

After exiting the private elevator, she knocked on the door and waited patiently. Soon it opened and Margaret stood there with a smile and beckoned her in.

“I’m so glad you’re here, Harper. Bear’s been so excited since I told him you were going to stay with him while we were gone, ” the older woman gushed as she led her down the hall.

Harper smiled fondly at the older woman, knowing the stoic Bear wouldn’t look the least bit excited to see her. The dog loved her as much as she loved him, but he was a very solemn creature. Rarely showing any outward emotion even when on the defensive, he didn’t growl but just would move straight to action.

“I’m glad you’re here early, Harper; the report has the traffic looking horrible on the way to the station.” Richard added as he came out of their master bedroom, dragging a suitcase behind him.

Bear watched them all quietly from his bed in the corner as though they weren’t getting ready to leave him for weeks.

“This city has such horrible traffic, ” Margaret complained fondly as she moved to get her own suitcase and followed her husband. They both gave Bear a fond pet and embraced goodbye, and Harper as well when she teasingly offered her arms.

The couple laughed and reassured them as they headed out the door; this was the first time that Harper was staying in their house, but she was in and out so often it felt like she practically lived there.

"Remember, dear, if Bear wants something, give it to him.” Margaret suddenly added as she started to leave.

“Oh yes, it’s better not to fight him.” Richard said with a laugh as he followed, and they left the apartment.

Harper pondered their odd phrasing and glanced at Bear. He’d always been a sweet dog, eating and taking treats as given. He’d never given her any troubles on their walks. She couldn’t think of anything that would change him to be so demanding at home.

Tossing the thought to the back of her mind, she put her bag into the spare bedroom and came out.

“Let’s go, Bear, ” she called out, grabbing his leash, and the large dog immediately trotted to her side. His tongue lolled out, and his tail wagged in a slow, pleased arc as she clipped it to his collar.

Together they headed out to the local park, and Harper clipped the leash to her waist as she started to jog on the wilderness path. It allowed her to keep full movement of her arms as she ran, and Bear followed her in a flawless heel, keeping her pace. The dog seemed happier the faster she ran, and the two jogged and ran for nearly two hours before Harper had to give up and slow to a walk.

“You win, ” she gasped out with a smile and patted the panting dog on the head. Bear seemed to laugh at her, and he pushed in close between her legs and rested his head on her lap when she sat down on a nearby park bench after walking a bit to cool down.

Her fingers played with his long silky hair, and he let out a contented hum between her touches. She was constantly amazed at just how soft his fur was; it should have been a coarse, hardy coat, but instead it was amazingly plush.

She thought with a smirk if she ever found a boyfriend, he’d need to have hair as soft as Bear's, or she would feel bored playing with it. Her fingers pressed into his perked ears, and he tilted his large head into her caress with a content sigh.

“Such a good boy, ” Harper purred to him and pressed a kiss on his forehead that Bear immediately returned, slobbering her face with his long tongue. She laughed and pulled back as Bear pushed forward and jumped against her, licking her more thoroughly.

"Off, Bear, ” she ordered, laughing as the large dog gave an annoyed gruff and sat obediently in front of her.

“No making out in public, ” she said with a teasing laugh and got up from the bench. She brushed herself off and straightened her clothes. Not noticing how closely Bear was watching her movements.

They headed back to the penthouse, and once inside, she made sure Bear had fresh water and placed a small bit of food in his dish. Feeling sweaty and dirty after her run, she decided a shower was in order.

“Behave Bear, I’m going to go get cleaned up.” she fondly patted the dog’s head as she headed into the guestroom with its en suite bathroom.

Harper enjoyed a long hot shower with the many different functions of a truly amazing shower. She even played a small tease on herself with the shower wand, and she let herself have a small climax to relax.

Leaving the shower, she dried off and wrapped her hair in a towel to dry after slipping on a thin sundress. She didn’t bother putting on a bra or undies; until she took Bear out for his night walk, she didn’t plan on moving from the sofa and the big-screen TV.

She walked out of the room and found Bear waiting for her calmly in the living room; she played with his ears as she walked past him to the kitchen and found a cupboard full of snacks she knew the owners had left for her. She started to open a bag of chips and then let out a startled yelp as a cold nose pressed under her dress and against her pussy.

“Bear!” she shouted and jumped back, looking down at the dog. Bear looked up at her as though confused and tilted his head slightly to the left. “None of that. Keep your nose to yourself.”

She shook her head and pushed the dog away from her side and turned back to the snacks. She shivered and jumped again when a long wet tongue ran up her bare leg.

“Bear, no.” She said, firmly pushing the dog out of the kitchen fully this time. Though he whined slightly at her. She knew he was probably just licking the water from her leg or trying to see what the soap smelled like. But it was still enough to make her uneasy.

She finished prepping the snacks in peace and returned to the living room. Bear was watching her from his bed as she set up the bowls on the end table. As she bent over the table to arrange things, she didn’t notice his eyes staring at her and his nose widening to take in her scent.

It took her completely by surprise when the large dog slammed into her from behind, forcing her to the floor. She grunted as his full weight hit her and she struggled to get up. But the dog pressed his paws firmly into her, holding her down as he stood over her prone body.

“Bear off, " she commanded and started to move again. She was shocked when she felt a deep, angry growl vibrating through her spine, and she froze as the large dog pressed against her harder. She grunted as her chin hit the floor and her stomach was pressed into the carpet she’d thought of as soft before. But now it felt coarse and rough on her skin.

She twisted her head around, and Bear looked at her fully, his eyes bright and his mouth twisted into a snarl. She shivered and tried not to move as she tried to figure out what was going on. When she stopped fighting him Bear calmed down and fondly nuzzled her face as her tears flowed. He placed an almost teasing lick across her cheek, and she let out a panicked cry as she felt him arching and pressing against her.

A thick hot cock was extended from his sheath, and she could see he was ready to fully mount her. She panicked and tried to rise up and get away from him, her hands scrambling to grab at the carpet. But her movement just seemed to encourage him, and he let out a deep growl as he shifted until her ass was pushed upwards and his cock was sliding between her legs.

“No, no, no. Bear, stop. Please stop. No. Bad dog!” She cried out as she felt him starting to move and grinding against her pussy. The slick precum on the dog’s penis spread over her folds, and she started to sob when she realized she was still excited from her earlier tease in the shower and her pussy was growing slick under his movements.

Bear let out a deep grunt as he thrust and his cock pressed against her pussy and tried to penetrate it. Harper jerked as he moved and tried to close her legs and keep him out. But the dog was determined and ignored her efforts. He made several long, deep thrusts against her until, with a wet noise, his cock found its mark and slid inside her. She tensed and arched her back in shock as the thick cock was pushed inside her. She whimpered, and Bear seemed pleased and licked her mouth as his hips jerked hard and pushed deeper inside.

As he slid inside her, her body spread to accommodate his thickness. She remembered the owner's comments as they left. Had they known this would happen? What kind of people trained their dog like this? She cried out as Bear thrust hard against her ass, and her hips jerked in response.

With a soft moan she gave up fighting and just submitted to his movements, and Bear seemed to sense it and worked her even harder. His thrusts were harder and faster, and she moaned and tightened around his cock as it filled her. She could feel his knot pressing against her ass, and she prayed he didn’t try to push it into her.

He worked her body for what felt like forever, and she grunted and moaned under his attention. She couldn’t understand didn’t dog sex finish within minutes. Why was this taking so long? Her mind screams out for it to end, but she realizes her body was embracing the sensation of being dominated, and she was starting to feel really good.

As she started to feel her climax coming, she felt Bear let out a rumbling noise as he made several long, deep thrusts until she climaxed. As her body tensed and her toes curled, she screamed into the carpet, and she felt Bear’s thick knot pushing inside her. Her body arched as it took in the knot, and she felt herself quivering as he spurted his cum deep inside her.

Bear let out a deep, contented sigh of pleasure, and he licked her face clean of tears and then licked her mouth. She undoubtedly opened her lips when he licked her, and he slid his tongue into her mouth, and she felt it teasing her tongue. She tried to jerk away, but the dog pressed her head down with a large paw and licked her mouth thoroughly.

All the while his thick knot held them together and his thick cum was soaking into her body. She could feel it spurting inside her, and she unknowingly whimpered into Bear’s mouth. And encouraged, he licked her eagerly, his tongue stroking her mouth until she felt sick inside.

When he finally stopped, she thought she’d finally get some relief, but instead the dog nuzzled her neck and affectionately nipped at her skin until she was trembling under him. She could feel her pussy tightening at his attention, and she writhed on his cock. He let out noise of pure pleasure and nipped her skin until she did it again.

She wanted to fight, but somehow the dog seemed to know what her body needed more than any partner she’d had in the past. She felt herself trembling as pleasure overwhelmed her at his bites. She submitted to him completely, her neck tilted back to give him more access, and her body clenched and held his cock tightly inside her while he gave deep spurts, coloring her womb white with his cum.

It was a bit more than thirty minutes before his knot relaxed and his cock slid out of her pussy. She whimpered and buried her face into the carpet when he stepped off of her. She didn’t know what to do., Should she run away, leave him here. Call the owners? Tell them what? That Bear raped her?

Her legs trembled when she tried to move and she tensed up when Bear approached her again. She watched as he carefully scented her pussy and gave a few long licks to their combined fluids. She moaned slightly when he licked her clit, and the dog turned and glanced at her. She felt like she could see amusement in his dark eyes. Still watching her, he lowered his head, and his tongue stroked her clit until her hips bucked at the pleasure.

"Please, Bear, stop, ” she whimpered.

The large dog let out a noise that almost sounded like a chuckle mixed into a snort, and he gave one last firm lick of her clit before he moved up and nuzzled her neck affectionately.

“Bad dog, ” she said quietly as he pressed himself into her space. Bear tilted his head, and then his tongue lolled out, and he lowered his head and nipped at her covered breasts.

“No, ” she whimpered, and Bear ignored her and started to firmly lick and tease the cloth-covered globes. His paw held her on the ground while he nibbled and licked her breasts until they grew hard and she moaned in pleasure. His long tail whipped in pleasure as he heard her making noises he knew were for pleasure. As she squirmed underneath his tongue, his cock grew harder and emerged from its sheath again.

He moved his paw and nipped her side until she cried out and rolled over onto her stomach again. He happily moved behind her and shoved his muzzle into her pussy, giving her a few quick licks to sense her readiness.

Harper didn’t fight this time; she spread her legs and raised her ass to him, presenting her slick pussy to his mouth. He licked a few more times and then roughly mounted her. His paws dug into her sides as he angled his hips and sought to mate with her a second time. She grunted under his heavy weight and braced herself as he situated himself on top of her.

Harper moaned as he thrust his cock deep inside her with one smooth motion and the fluids coated and smoothed his entrance. Bear let out a deep groan of pleasure and started to rut into her. Deep thrusting movements forced her to grunt under his weight, and he pinned her down with his paws to keep her in place while he fucked her.

Forgetting she was supposed to be resisting, forgetting that it was a dog, Harper lost herself in the sensation of the thick cock moving inside her. Her body grew slick and tried to both hold and push out the thick appendage that was thrust into it. She let out a deep moan; her body tightened as an orgasm sent her spiraling, and she clamped down on the cock.

Bear growled in pleasure as she gripped his cock, and he jerked his hips harder and rode her through the climax, sending her into a second wave before she even fully left the first. As her body writhed against him, the dog grew more excited and thrust harder and faster into her. Until, with a deep thrust, his knot was forced into her pussy, and the animal let his cum spill.

Harper moaned on the floor as she felt the warm heat filling her body. She trembled under the sensation of his, the dog's, cock pulsing bursts as it filled her. Bear let out a content sigh and rested on top of her before twisting his body and sliding around so he faced opposite of her, but his knot was still tying them together.

She let out a small cry as he tugged, trying to get free before he turned his body and nuzzled her face. This time she closed her eyes and opened her mouth and let the dog lick and tease her mouth as it pleased. As time passed, his knot released, and he pulled free from her body and did a full-body shake. Then he casually walked into the kitchen area and drank some water.

Harper lay on the ground panting as she felt the dog's thick cum seeping from between her legs. She pushed herself up to her knees and leaned against the sofa, trying to regain feeling in her legs and fighting the soreness between her thighs.

Bear came back into the room and nuzzled her sweetly before lying down on his bed like nothing had happened. She stared at the large beast and then down at the state of her body. Her pussy clenched slightly and she let out a small whine.

How on earth could she last two weeks of this kind of behavior?