Adam finally has the cock of his dreams, but Sarah's is bigger

Adam's tiny dicklet had vanished. Or rather it had grown. Gone were the days of his shame, as his penis had been replaced with a most impressive and formidable beast, fully erect, and sticking straight up.

Sarah puts her own enormous erection on on top of Adams, bending it down towards his stomach and chest. And at this titanic clash of cock-meat, a spark of electricity and excitement ran through Adam's hulking body. All of his muscle tensed up, in preparation for what was about to come.
His thick and considerable large cock was yet again aching and ready to burst, and on top of that was Sara's even fatter and throbbing futa fuckstick. Both of them oozing and leaking precum, running down to their balls. Adam's enlarged balls were even bigger than hers, but length and thickness of Sarah's shaft still trumped his own.

"You have taken the remaining 'Growth X' pills, haven't you?"

"Yes!"

Sarah let her hands roam along Adam's chest and over his impressive pectoral muscles.

"And are you happy? I have never seen such a muscular body. Is it all what you wished for?"

Adam couldn't be happier. His wish and desire for a big cock had been finally fulfilled, and now he had gained even so much more. His penis and balls had become huge, although Sarah's futa rod was still bigger.

"Oh fuck yes, it's a dream come true!"

"Hmmm, i agree. My own brother, turned into the most impressive male specimen. And such an impressive and formidable dick, hmmm. But my huge girl-cock is still quite a big bigger, isn't it?

To emphasize her point, she used her hands to rub along her own intimidating futa fuckstick, that asserted her dominance by keeping Adam's boner bent down, and only graced Adam's member with her fingernails.

"I can't wait to use it do sodomize your ass!"