....  "Do you think it's working already?" Becky asked, barely able to contain herself and staring at her chest as if she'd see actual movement at any second.

"I hope so.  That's what we designed it for.  But you should probably get some sleep or something.  I'll pull the cot out for you."

"Are you kidding?!  I can't sleep!  Not tonight.  Not when everything's about to change."

"I guess you're right.  But try not to get overly excited.  We don't want skewed results.  Or our own optimism to get in the way of our perception."

"If it works, I don't think there'll be any misperceptions about it.  Either I'll start growing actual breasts, or I won't."

Growing breasts.  Something about those words—that thought—affected me in a way I didn't expect.  I suddenly realized, after all those years of anticipation and working toward this one goal, that I was, perhaps, about to be the luckiest man in the entire world: privy to a private show of naturally budding breasts.  I admit, my cock started to swell a bit as well.

But nothing was happening beneath Becky's lab coat.  Not yet.

"You should take it off."

"What?"

"Your coat.  If a change begins to occur, we don't want to miss it."

"If something starts to happen to my nonexistent tits, I'll know it."

"That's not very scientific, is it?" I smiled at my friend, excited for her own excitement.

"In case you haven't figured it out yet, Chris, this is more than just a scientific experiment for me.  More than an ambitious aspiration and the hope of being part of serious scientific advancement.  Hey..."  Becky's thoughts were interrupted as she pressed her hands to her chest.  "I feel something!"

I reached for my clipboard and pen and rolled closer to Becky in my own chair.  "What do you mean?  What do you feel!"

Becky's eyes grew wider, staring at her chest as she pressed her palms over her lab coat.  "I don't know... a... like a... tingling, I guess."

"Okay..."  I quickly began scribbling down the time and every word coming out of Becky's mouth.  "What else?  Any other sensations?  Do you feel okay?"

"Yeah.  Yes.  Well, no.  I mean..." Becky tore off her lab coat and stared at the front of her buttoned shirt.

"What is it?"

"I do feel kind of strange."

"What do you mean?"

"I don't know.  Just different.  You know?  Just kind of different.  Like something's happening."

"Okay.  Anything else?"

"No.  Just the tingling.  In my chest.  I don't feel nauseous or anything like that.  Just good.  Yes, it's just... good."

I looked up at Becky to verify what she was saying, to make sure she was actually okay.  Her eyes were bright with anticipation and happiness.

"Let's take a look," I suggested.

"Huh?  Oh, yes!  Right!"

Becky's shirt came off ten times as fast as the last time, and we both glared at her chest.  It actually seemed like her nipples were larger.  Not by much, but the male eye knows those things.  Acutely.

"I think... are my... are they different?"  Becky started rubbing her nipples under her fingertips, flicking them, feeling them, and sizing them up.  It was the most amazing sight I'd ever seen.

The combination of my two favorite things—science and breasts—culminating in one visual moment was almost overwhelmingly exhilarating.

I set to the task of taking new measurements of Becky's nipples.  It was all I could do to remind her to sit still for accuracy and contain her elation.

"It's happening!  It really is!  My God, Chris, we've done it!  And... and look!"

Right next to my own fingers, right beneath Becky's nose, her nipples were elongating.  Visibly!  Totally viewable by the naked eye.

Her flat chest was flagged by two, growing nipples sticking out by exactly four millimeters, then five, then six.

"Oh... wow!" Becky suddenly shouted while we watched the amazing transformation.

"What?  Are you okay?  You sound—"

"No, it's all right.  I'm all right.  It's just... exciting.  And the changes... well, they tingle.  It's like... well, it feels really good, Chris!"

A new drug that every woman and man in the world would pay anything for that felt good too.  It was a dream come true.  The pharmaceutical jackpot.

"Mmmm...." came from deep within Becky's throat.  She could barely manage to keep her own eyes open to study the changes happening to her own body without succumbing to the pleasure she was obviously sensing.

Becky's scientifically curious fingertip flicks over her nipples transitioned to slow, deliberate strokes over them.  She pulled at her still-sprouting nipples, nearly convulsing at the waves of feeling that undulated through her body.

I made every attempt to continue to measure and record the hastening growth, even tugged at Becky's fingers to keep them at bay.  Her own pleasure was taking her over.  And that was before her breasts themselves started to grow.  ....