Straddling the dog's back, her aunt held him back as he tried to leap up. Finally Captain Marvel got a paw on the table edge and mounted. Gayle's waiting body was shivering with anticipation. She knew now that much of what her aunt had said was true. She did want to be fucked. And the way that cock looked, the way it had felt in her mouth weakened her resolution to be a good girl.
Yes, she'd actually sucked on it! How could she have? But she had and now she waited for her aunt to guide the raw, slippery knob against her pussy. The Great Dane licked her small, firm tits, bringing her nipples up even more firmly than they'd been before. Rippling pleasure went through her flesh. The animal's furry chest touched her and she put her small hands up to touch his sides.
"God, you are really ready," her aunt sighed, holding the dog's huge prick as she let him lunge forward inch by tantalizing inch. Then Gayle felt it! It was hot and smooth and it slid easily down into her cunt, down over her clit and inner lips, down to that feverish hollow where her muscles were squeezed tight.
"Relax, baby," Ann Marie said. "Relax or he'll just force that little hole of yours right open anyway. It might hurt if he does it like that."
"Ohhhhh!" Gayle's ass was glowing. She rocked from side to side, letting her mushy, velvet flesh swathe the monster dog's cock with hot juice. The juice squished and sucked as the dog's hungry movements buried half of his cockhead inside the ring of muscles. Then with a pop, he entered her, and the glow turned into a radiant pleasure that made Gayle hump her back and arch it again. She humped and arched, her ass rising and falling. She was squirming like that with only the head of the dog's prick inside her.
The Great Dane let out a long, low moan. She knew that he liked what her steamy hot cunt was doing to him. But more than this, she was wild about what that enormous pricktip was doing to her twat! It had stretched her more than she'd ever been stretched in her life! That thing pulsed and throbbed with a steady rhythm as the dog shuddered with excitement. It was lucky that her aunt was holding him back or he would ram that awful cock to the hilt and ruin her forever. But with just that bulging tip squeezed tightly by her whisper-slick muscles and cuntflesh, Gayle thought she would die from the thrills that jolted through her.
"Ohhh, ohhhh shit! Ohhhh, Ann Marie! God, it's the itchiest, nicest feeling in the world. Ohhh, he's so big and hot!"
"I'm not going to let him go any deeper for a while. You are pretty tight and I want your body to stretch slowly."
"Gnnhhuuuuhhh," Gayle babbled, tossing her head again. Her fingers were gouging deeply into the big dog's fur. She moved her hips again, see-sawing them, then plunging up and down again. Her tight little pussy wrung Captain Marvel's cockhead tightly and the dog rumbled and whined with pleasure.
"Ohhh yeah… ohhhh you were right, Ann Marie! It's so nice! Ohhhh I want to do it forever!"
"Unfortunately, humans can't take that much ecstasy. Dogs can't either."
"Mmmmhhhuuuhh, ohhh, ohhhh it's swelling up even bigger! I can feel it swelling!"
"You'd better quit writhing around so much then. I think old Captain Marvel's about to bust his balls."
Gayle froze as her aunt had suggested. She didn't want to. What she wanted to do was to keep on squirming, to keep on rubbing that fantastic itch that the dog's cockhead had started. She guessed that she was pretty close to a climax too.
After a minute or two, Gayle couldn't keep still any longer. The intensity of her pleasure had died down enough so that she was panting for more. She gave her aunt a helpless look and ran her small hands down between her body and the furry chest of the dog.
"Yes," Ann Marie sighed, "just feel where he's stuck inside you! God, you should see how it looks! Your pink little cunt is all pulled out around that red prick of his. Your lips are clinging to it like they'll never let go!"
"Uhhh, I can feel! Ohhh wow, he's so big. I'm really stretched, aren't I?"
"He's dying to slide it in deeper! Can I let him?"
"Yes! Ohhh I want more, Ann Marie! I never thought I'd beg for it like this. I'm ashamed. But I do want more! Ohhhh let it slide into me, please let it, please!"
As her aunt loosened her hold of the dog's haunches, he lunged a little, his hot tongue licking her breasts again. Gayle babbled excitedly and began to pump her slender ass up and down to make her juices flow out more freely. The dog's cockshaft made a sexy sound as it penetrated her overheated flesh. He shuddered and pulled back to ram again. Ann Marie dug her fingers into his body, stopping him from thrusting.
Gayle felt the thrust anyway. It forced her young cunt apart inside. She could feel that hot knob plowing through the velvety tissues. She chewed her bottom lip and whined with the thrill of what was happening.
"Oh, he's fucking me! Ohhhh God, he's really fucking me!"
"Yeah, baby, he is! I can hardly hold him back. He really wants to get it deep. You must be hot and slippery in there cause he's going in so easy!"
"Uhh, uhhhh, uhhhh, God!" Gayle's ass quivered as she took the dog's plunging cock. It was in about five inches now. She could feel the hot shaft sliding by her fingertips. Her clit was a hot bead of excitement and the pull of her stretched flesh made it grow even hotter and longer.
"You'd better get ready for him 'cause he wants all of you," Ann Marie said. She was having a hard time keeping the dog from pulling away from her grasp. His hind paws dug holes in the grass as he thrust for power. His shaft slid in and out an inch as he stretched deeper into Gayle's adolescent cunt.
"Yaaahhh, it's really big! Ohhh, it's opening me all up inside! Ohhhh, God, Ann Marie, you won't let him kill me!"
"I'm holding on."
"Nhhuuhh, whhuuuhh!" Gayle grasped frantically at the remaining few inches of dog cock. Then she felt the sheath. The dog was really getting deep. She had six inches now and then seven as the Great Dane lunged forward, almost pulling free from the restraining hands of his mistress.
"Easy, Captain Marvel, I know you want her! Easy, easy…"
Gayle lifted her tan legs and squeezed the large, furry animal between them. The rub of his sides against her thighs excited her even more and she crossed her ankles and squeezed, trying to limit how far he could drive that hot, hard cock into her body. It worked! By squeezing him like that, the dog could only have what she wanted him to have. But it seemed enough. He lapped at her naked tits and wallowed his balls against the cheeks of her ass. Grunting with pleasure, Gayle let him have another inch as her juices spilled out around the dainty lips of her cunt.
"Woweeeee! Ohhhh what a crazy dog! Ohhhh, Ann Marie, he's fucking the shit out of me!"
Ann Marie had let go and stepped back. Gayle saw her face, her wide eyes and trembling lips. It was obvious that her aunt had never witnessed anything quite like this, experienced as she was.
"You got him, Gayle. Just hold on tight! Ohhh, Christ, you make me want to do it too."
Now Gayle clung with both arms around the dog's neck and shoulders. He eased down from the table and took a few steps with her clinging to his body, dangling below him with her cunt deeply penetrated by his huge cock. Ann Marie was jumping around and sighing and telling Gayle how beautiful she looked hanging there under that monster dog. Gayle felt every thrust of his hot cock. He was standing on all fours, fucking her as she held on for dear life. And the juicy drops of sex butter were making her ass wet.
The dog had stretched her. She could feel her womb being pushed deeper into her belly, she could feel that swollen head making more room for itself. And she could feel her tender flesh squeezing and milking at the huge thing. Her velvety insides swathed the dog's cock with slick juice. As the knob swelled to its largest size, the itchy pleasure began to surge through the plump heat of her mound. Her clit was a tingling, pulsing trigger about to be pulled.