As Will found the vial & pulled it out of his pocket, he explained to Meghan that if she really wants him to do it again, he just needs to place a single drop of the fluid from the vial into a glass of water and drink it. Without hesitation, Meghan grabs the vial & says "Sweet, then let's do it! I have an eye dropper in the kitchen, so while you clean up a bit, I'll make another one for you!"
"Ok." Will said; while still recovering from the amazingly intense orgasm; & realizing that even though his cock & balls had shrunk back to 'normal-size'; his 'normal-size' was now significantly bigger than it had been before.
In the kitchen, Meghan found the eye dropper after filling a glass with water. Opening the vial, she used the dropper to suck up almost all of the remaining fluid, and then proceeded to drop one drop into the water as Will instructed. Before returning the remaining drops to the vial, Meghan thought about how hot it would be if Will could just stay hard for her all night, regardless of how many times he came. Not realizing the drops had actually caused the growth which gave Will his huge genitalia, Meghan assumed the drops were just some sort of super herbal Viagra to get & keep Will's giant porn-sized equipment hard. Based on that assumption, and her horny desire for Will to "go all night", she squeezed all the remaining drops into the glass of water, swirling the glass to mix them in.
"Here you go big-boy, bottoms up!" she said as she returned to Will, who after having put on his underwear, was enjoying the appearance of the slightly larger bulge he now possessed.
Excitedly, Will took the glass of water & chugged it down; anxious to experience the massive cock & ball growth again, not to mention the amazingly intense orgasm that went with it. And while he was incredibly happy with his new "normal-size" equipment (which when hard was about 8.5" long X 6.5" around, with golf ball-sized testicles), he actually hoped he'd be even a little bigger after the drop wore off this time (ever since he found out his ex's current boyfriend was hung 9X7 with supposedly "huge balls", Will had secretly wished he was hung equally as well...well ok, maybe just a tiny bit bigger ;)
Meghan smiled as she anticipated the night to come; hoping the drops will work as well as she expected, with Will being able to keep going at it all night.