She lives on in you

Jenna stood tall on the rocky shoreline, her muscular frame glistening under the tropical sun. Her long dark hair clung to her shoulders, and between her legs hung a thick, heavy cock and a pair of full balls that swayed with every step. She had lived alone on this island for years after the lab staff abandoned her.
A girl washed up on the beach that morning, dazed and exhausted: Mia (14), a petite blonde with bright blue eyes and a slim, athletic body from years of cheerleading.
Jenna helped her to shelter.
Thank you… I thought I'm going to die out there. Who are you?”
Jenna smiled gently. “I’m Jenna. I’ve been here a long time. You’re safe with me.”

Over the next weeks Mia learned to fish, build shelter, and gather food. At night they sat around the fire and talked.
“You said you grew up in a lab. What was that like?”
Jenna’s voice was calm. “Quiet. Lonely. They left one day and never came back. I had to learn everything myself.”
“You’re… different. You have a penis, right? Like a guy?”
Jenna nodded. “Yes. I’m a futanari. Big cock, heavy balls. It’s just how I was made.”
Mia blushed. “Does it… feel good when you touch it?”
Jenna chuckled softly. “It does. But I’ve never shared it with anyone until now.”

Later that night, Mia pressed against Jenna under the stars.
“I want to feel you,” Mia whispered. “Please be gentle.”

Jenna led Mia to a soft patch of grass beneath the swaying palms as the moon rose high. Mia’s petite frame trembled with nervous excitement, her slim cheerleader’s body bare and flushed. Jenna knelt between her spread thighs, her thick futanari cock already hard and heavy, the broad head glistening. She leaned down and kissed Mia deeply, tongues sliding together while her fingers traced gentle circles over Mia’s small breasts and stiff nipples.

“Tell me if anything feels wrong,” Jenna whispered against Mia’s lips.

Mia nodded, blue eyes wide. “I want this… I want you inside me.”

Jenna pressed the fat tip of her cock against Mia’s virgin slit and pushed slowly. The tight entrance resisted at first, then yielded with a wet sound as inch after inch of Jenna’s shaft sank into the inexperienced pussy. Mia gasped and clutched Jenna’s shoulders, her walls clenching around the invading thickness. Jenna moved with careful, shallow thrusts, letting Mia adjust to every new sensation. When she finally bottomed out, her heavy balls rested against Mia’s ass. She stayed still, kissing Mia’s neck and murmuring soft praise until the girl’s breathing evened out.

Then Jenna began to fuck her properly. Long, steady strokes dragged her cock almost all the way out before sliding back in, stretching Mia’s pussy again and again. Mia moaned louder with each thrust, her hips lifting to meet Jenna. Sweat glistened on both bodies under the tropical night. Jenna’s pace stayed gentle but deep, grinding her pelvis against Mia’s clit on every downstroke. Mia’s first orgasm hit suddenly; her pussy fluttered and squeezed hard around Jenna’s cock. Jenna kept moving through it, drawing out every ripple of pleasure.

When Mia begged for more, Jenna gave it to her. She increased the depth without rushing, her heavy balls slapping softly against Mia’s skin. After several long minutes of steady lovemaking, Jenna’s climax built. Her cock swelled inside Mia and began to pulse. Thick, hot ropes of cum flooded the girl’s womb in powerful spurts—far more than any normal man could produce. Mia’s belly visibly rounded slightly from the sheer volume as Jenna kept pumping, filling her until excess seed leaked out around the shaft and trickled down her ass. Jenna stayed buried deep, kissing Mia through the aftershocks until both were calm.

Two months later a wild boar charged the camp. Jenna stepped in front of Mia and fought it off, but the animal’s tusks tore deep. She died in her arms.

Mia buried her near the beach, crying, holding herself because there is no one else left.

The next day a rescue ship appeared. Mia, the sole survivor, climbed aboard, leaving Jenna’s grave behind.

But she didn't know yet that Jenna’s abundant seed had taken root. She carried a growing futanari child inside her, the beginning of a new generation born from the woman who had loved her.