All of them

"All of them!" Heather moaned, while she continued to masturbate and even increased her pace.

However Adam was taken slightly aback. "All of them? But that would mean. lets see, 16 pills remaining, 1.75 inches per pill..."

"39 inches, over 3 feet of glorious cock meat!" Heather exclaimed, before Adam had a chance to calculate it himself. He soon realized that she was probably right in her calculations.

"But... i don't think that would even, you know, fit inside you?" Adam answered, clearly worried. This wasn't exactly what he had in mind. An incredibly huge cock yes. But one more than three times his current size? One that would be actually so big, that it would prevent him from having sex? No way!

But Heather now seemed like in a frenzy. She still masturbated furiously and was close to cumming. "I don't care! I want a cock, that stretches my small cunt to the maximum and even beyond. I want a cock to fill me up so completely that i forget everything else. I want a cock to rip me open and split me in two. I want a cock to be my entire world. I want a cock so impossibly big... ahaah!"

With a loud cry of ecstasy Heather came violently all over her hand. Then she looked at Adam, and it seemed like her eyes twinkled with a spark of madness.