Amanda's sensual assault on helpless Jess turned only more vicious and more irresistible as the seconds passed. The rapidly increasing size difference between Amanda and Jess made it difficult for the larger girl to pinpoint her victim's sensitive areas--but what Amanda lacked in finesse, she more than made up for in sheer sex appeal. The energy from Jess' orgasm fueled growth spurt after growth spurt, and the bigger Amanda got, the more turned on Jess became. Her juices flowed freely into Amanda's waiting mouth as she experienced rapid-fire climaxes. In a fleeting moment of terror, Jess realized just how much bigger and more dangerous Amanda could become if she continued to orgasm. She'd been able to achieve astonishing sets of sexual peaks in the past--far more than pathetic Randy and Brad. She realized, with a dizzying mix of elation and regret, that she'd be able to do this all day...

As Amanda grew, the down-time between Jess' orgasms shrank to mere seconds. Jess now felt like little more than a piece of jewelry, strapped onto the widening shoulders of a giant. She felt her back pressing against the wall--or was that the ceiling--as Amanda's growth continued. Between her legs, Amanda's lips gave a staccato shudder. The burgeoning titan let out a breathy moan and, at last, came up for a breath of air.

"Wow," Amanda roared, her voice deep, sultry and resonant, "looks like you've got some stamina, girl!"

Jess' voice was little more than a squeak by comparison. "Amanda!" she screamed. "You have to stop! You're getting too big!"

"Stop?" Amanda frowned, then sighed with feigned resignation. "OK, as you wish..." She plucked Jess from her body with a single hand and started lowering her to the floor. As Jess passed Amanda's bikini line, she momentarily drowned in the heavy scent of the superwoman's mega-pheromones.

"Wait!" Jess cried, beating her fists against Amanda's palm. Amanda opened her hand and Jess pleaded, "Just one more?"

Amanda smiled a wicked smile and dangled Jess in the air, pressing her mouth against Jess' comparatively tiny womanhood. She set to work at once, and brought Jess to a screaming, thrashing climax within seconds.

"More!" Jess shrieked, and growing Amanda obeyed. She could feel her breasts pressing ever forward, achieving new roundness and firmness, as her muscles bunched and hardened. Waves of new definition swept across her physique, transforming mounds of new female beef into the tightly-packed muscle groups of a super-hero, teeming with untested strength. Every surge was new and shocking, every new inch a triumph. The sensation was maddeningly addictive. "More, more!" the girls chanted in unison, Jess begging for sexual fulfillment, Amanda hungry for super growth. With a satisfying crash, Amanda's bulging physique bested the flimsy roof, sending a shower of boards and shingles to the ground.

Jess' figure pulsed and shivered, then was still.

"Amanda," she gasped, looking down from her perch, "You're...really really gigantic!"

Amanda, now a true muscular giantess, surveyed her surroundings from a newly elevated vantage point. She felt so POWERFUL! Her increased size awoke in her an almost primal will to dominate, conquer and show off. All she wanted to do was throw her newfound weight around. Well, that, and...

Amanda shook her head in disappointment as she looked down at Jess.

"You're too small!" she teased. "I can't make you come anymore."

"I don't think I COULD come anymore," Jess protested.

Amanda's eyes narrowed. "Of course you could!" Jess was the best fountain of growth-juice Amanda had ever had. She wasn't about to accept that the well had run dry. Maybe if she let Jess get just a little bit bigger...that might work. Although, she wondered idly, there were probably other women, similar women, in nearby towns, unsuspecting and ripe for the harvest...