Giving In
She couldn't believe the incredibly bad luck.
Today was supposed to be among the best days of Cynthia's life. The 18-year-old lioness was supposed to be walking with the rest of her high school class. She had graduated with honors as the class salutatorian, the second-highest GPA in her class. Then, afterward, she would reunite with her boyfriend, Tim, for a summer leading to her moving in with him in DeLand so she could attend Stetson, where he was already a junior.
But those plans--at least, her graduation plans--were destroyed two days earlier, when she suddenly went into heat.
All of a sudden, she was stuck in her room, devastated that she would be unable to participate in any of the festivities, formal and otherwise. What made matters worse was the unending itch; the constant, nagging need to get rutted.
It was hardly the first time she had felt it, but that didn't make it any easier. She needed not just to be rutted, but to be ejaculated into. She needed to be satiated in a way only a male could provide. The previous times this had happened, at least three times a year since right before she turned 15, left her mad with need, and depressed when it was finally over.
Cynthia knew she could not allow this kind of resolution before, when so much rode on her remaining unburdened by parenthood. She had not even allowed Tim to be near her, though she envisioned the large Rottweiler male atop of her whenever she worked on pleasuring herself. She longed to feel his knot stuck inside her, forcing her to receive his semen deep within her body, as she would let him do when she was not in heat.
This time, however, the previous burdens seemed lifted. This time, she wanted the risk. She wanted Tim to finally plant his seed inside her fertile womb, attempting to put his child inside her. She needed that resolution.
But, being stuck in her room, Cynthia felt like she was in a prison. She fell into her old habit, and did not seek her canine boyfriend out. Instead, in that third night of her estrus, she was laying alone in bed, swiftly plunging a dildo in and out of her slick, snug pussy, keeping the swollen folds of her labia well-spread and vigorously rubbed. She had cried into her pillow several times, screaming her lover's name, though he was not there.
Then, as she recovered from one of her countless orgasms, she heard a tap on her window. And another tap. On wobbly legs, she managed to throw on a robe and peeked out from the side of her curtains. When she saw what was standing there, her eyes lit up immediately. She opened the curtains and found Tim standing just outside her room, only wearing his boxers. Cynthia opened the window gently and let him in, blushing as she looked her boyfriend over.
Tim stood in front of her, his large brown eyes wandering over the partly-exposed body of his girlfriend, as he had seen her many times before. At first, no words were exchanged, just paws on each other, Tim slipping Cynthia's robe away and Cynthia undoing Tim's shorts, letting them fall down his thick legs to reveal his plump sheath and scrotum, and a rapidly-growing penis. Arms were soon around one another, and their muzzles met in a longing, soulful kiss, even as pheromones made their minds race with thoughts of fulfilling more basic instincts.
Tim was the first to speak, nuzzling up along Cynthia's muzzle to whisper in her ear, "I thought you'd like some company, Cindy."
She responded in kind, "I need a lot more than that."
"Is it alright...if I give that to you?" Tim replied.
"Like I said," Cynthia said, one of her paws slipping down and slowly stroking the warm flesh of Tim's penis, pushing his sheath fully back behind its flaccid knot, feeling it throb as it widened and stiffened fully in her paw. "I need it. I'm ready to risk it now, Tim."
By then, Tim was panting. Despite the difference in species, he recognized Cynthia's condition, and was more than willing to give in to the same instinct that was driving him. His left paw moved from around the lioness' body and rubbed her swollen, fertile vulva. Cynthia pressed in some against Tim's body, feeling his somewhat pudgy belly rub against her trim tummy, both her paws rising up to rub his firmer pectorals. She then pushed Tim back, tripping him up against the edge of her bed, and climbed over him.
Cynthia moved over Tim's body, straddling his thighs, and touched a fingertip to his lips, as if to remind him to try to stay quiet. She then moved her other paw back and shifted, positioning his penis up and hovering over it, the intense heat radiating from her sex and kissing the bare shaft of his erection. The mere proximity made both their breaths quicken; it was nothing like any previous liaison between the two, as good as their sex lives had been to that point. When she lowered down, the slick flesh of her body kissing his directly, it elicited a pair of soft moans. When Cynthia pushed down, spreading her flesh open on his penis, she bit her lip and arched her back, pressing her firm large-B-cup breasts out above her boyfriend's prone body.
Cynthia got to quick work, rolling her hips back and forth. Though it had been many months since the last time they made love, it was like riding a bicycle. Her motions on Tim's sensitive shaft were smooth, allowing her to pick up the pace quickly. She groaned some into her bitten lip as she worked back and forth, soon the rottweiler's penis pistoning powerfully inside her snug pussy with the greatest of ease. Tim arched his back, and his paws rubbed up and down his girlfriend's sleek feline torso, cupping her breasts and rubbing his paw pads against her sensitive nipples. Both were huffing softly into the growing humidity of her room.
Soon, Cynthia needed more than just the in-and-out movement of his penis inside her vagina. She needed to be fucked. She lifted suddenly off of Tim, making him whine softly when his shaft departed her body. But the lioness rewarded his patience as he sat up with a turn onto her belly, lifting her ass up in the air and looking back at her dog, her eyes begging for his seed. All too happy to oblige, Tim moved up and shifted over Cynthia's back, nudging his cock's tip instinctively to her vulva before shoving forward and burying his bone all the way to the hilt. Even flaccid, she could feel the thickness difference where his knot was destined to swell.
Tim wrapped his arms around Cynthia's waist and lay over her back, his belly against the curve of her body, their forms fitting perfectly together. The dog then started with his work, rearing back and shoving his hips against his lioness girlfriend's ass. Then he did it again, and again. The motion was set, and Tim was finally rutting Cynthia vigorously.
The young pair's fertile and sensitive bodies were quivering and tensing. Tim's testicles, hanging loose for now, were flopping against Cynthia's flanks, occasionally bumping her distended clitoral hood. Although he lacked the barbs of a male lion, Cynthia found the constant pumping of his knot to be a fair replacement for the scratching sensation of a long-previous boyfriend. The two were utterly lost in the sensations of unbridled, unprotected mating, reveling in their hopeful procreation.
From there, the events accelerated. Both bodies tensed even more, and Tim's balls pulled up into his body. He felt his knot swell, and ground hard into Cynthia's body, making her take it as it ballooned and left the pair tied. He stifled a growl, then dipped down and bit on Cynthia's nape, tugging it as he felt her pussy constricting on his thick shaft, that tip hovering right by her cervix. The stimulation was enough to send him into his climax, whining against her neck scruff as his cock surged and lurched, the dog settling into the task of impregnating his girlfriend.
Cynthia whined a bit as Tim came hard, feeling the surges of his penis as his thick ropes of semen painted her cervix. Tim dug a paw down into her crotch and rubbed hard on her clit, and it didn't take long for Cynthia to shove her muzzle into a pillow and muffle a scream as she came, her pussy milking harder against Tim's cock, draining his balls and prostate empty. Soon, the pair collapsed on their sides, still stuck in somewhat of a spooning position, and forgot about everything else as they dozed off briefly.
When Tim came to from his brief stupor, he snuggled into Cynthia's back, not really fully tied but unwilling to let go of his girlfriend quite yet. His addled head was spinning, imagining his sperm wiggling up into her uterus by the billions, seeking out and fertilizing her eggs. He had no way of knowing if that would happen, or was happening, but he wanted it badly.
Cynthia awoke to a sense of warm relief. She was still hot, but satisfied, feeling her dog's chest and belly against her back and his shaft still inside her pussy. She turned her head and licked Tim's muzzle, smiling to him. "I love you, Tim."
He replied, "I love you too, Cindy."
Cynthia pulled one of Tim's paws gently to her trim tummy, as if hopeful that their lust would bear fruit. But as she saw the time on her alarm clock, her heart sank. She whispered to Tim, "You know you can't stay, right?"
Tim responded with a gentle nuzzle on the side of Cynthia's neck, "I know." He gently pulled his semi-erect cock out of her vulva, and she squeezed, not ready to let his gift leak out quite yet. He lingered a moment, nuzzling and kissing on Cynthia, before disengaging and getting up to put his shorts back on. "Don't worry. In a few months, we won't ever have to worry about keeping quiet again." He winked to Cynthia, who smiled, remaining lying in her bed. He padded back over and caressed along her hip and thigh. "Good night, Cindy." With that, he opened the window and slipped out, closing it after himself.
Cynthia lay on her bed for a while, finally feeling satisfied, happy that she was free of the feeling of needing sex, at least for a while. Had they really conceived, and was this feeling a signal that they had? She was uncertain. She certainly didn't mind if it was. It was then that she turned her head and noticed that her door was cracked open. It wasn't open when Tim arrived.
Two days later, Tim was at his parents' beachfront house in St. Pete Beach, having lunch, when his dad dropped a letter in front of him. "You got some mail today." It was interesting, as his mail was redirected across the state to his college apartment.
He opened the envelope, and inside was a sight that surprised him. It was a photograph print of him and Cynthia in the middle of their orgasm. He turned over the photo to see a message:
"Dear Timothy,
"If my daughter winds up pregnant, you better be planning on putting a ring on her finger. Else, your first child will be your last, if you get my drift.
"Sincerely, Your future father-in-law"
"Couldn't keep it in your pants, could you, son?" Tim heard his dad say as he looked up in embarrassed shock.