Her eyes landed on a poster of Lizzie Watson, movie star and social activist. The co-star of the popular Harriet Potter movie series, Lizzie was wearing a sexed-up version of the witches clothes from the series, little more than deep purple pasties and a black string bikini, accented by a lacy, barely-there cape draped over one shoulder.
It hid nothing, of course, and her perky C-cups and perfectly-toned body were on display for all to see. The pasties were *just* too small to perfectly cover her areola, a thin band haloing out from behind them, and her string bikini bottom was so tight that one could make out the faintest hint of a camel toe, even with the low contrast of the poster.
Well, she'd get a better look than a low-res poster soon enough.
"I wish Lizzie Watson were the one giving the speech I just wrote, and that she has just arrived to review it with me, as well as become more intimately familiar with my views on the subject."
The ring sparkled, and a little firework shot off and passed through the door out of Cassie's room. A moment later, there was a polite knock.
"Come in."
Lizzie Watson stepped in, and immediately Cassie decided that she was, indeed, bisexual. Lizzie was wearing an extremely tight-fitting unitard, the practically vacuumed-on appearance leaving little to the imagination. The forest-green outfit made her look even sexier than she had been in the poster, and left no doubt whatsoever about her intentions for wanting to meet with the smartest girl in the world.
"Cassie, I presume?" Even her voice was sexier in person than in the movies, Cassie mused, as she sat up.
"Yes, and you must be Ms. Watson?" She stood and held out her hand, but the actress surprised her by instead sweeping her into a close hug.
"Please, call me Lizzie. I find that formalities between women just build up barriers and resentment."
Well then. "Thank you for coming, then, Lizzie. Let's review the current draft of the speech."
And, for the next thirty minutes, that's precisely what they did. Lizzie had clearly thought long and hard about animal welfare and ecological issues, and the speech broadly conformed to her views, but she and Cassie dug deep into some of the finer points of rhetoric, sharpening it until the logic was so rigorous it'd turn the head of Exxon into a card-carrying member of the Sierra Club.
Cassie also grew more familiar with what exactly "smartest girl" meant. She thought quicker than anyone else, clearly, and had the mental fortitude to out-think anyone, but she still had to do the research in order to do really solidify her position on a topic. (Her eidetic memory meant she only ever had to do the research *once*, but that was just a fringe benefit.) A "normal" human like Lizzie, who'd clearly spent a large amount of effort learning about a specific subject, could still have valuable insights, even after Cassie had done much of the work.
"That's as good as it's going to get," Cassie said, sending the speech off to the supercomputer for final edit checks and a test against simulated members of the audience for emotional engagement and reaction. "But tell me, Lizzie, the speech isn't the only reason you came all the way down to Antarctica, is it? We could have easily done those edits over a video chat, and you didn't need to be the one to give the speech, after all."
"...no, you're right, of course. I must say there's something captivating about the idea of meeting the 'smartest girl' in the world, after all, and wanting to see what she's like."
"How does she stack up to your imagination so far?"
"Everything I imagined," Lizzie said, sliding over and running her hand up Cassie's thigh. Within moments the two were aggressively making out, and after a minute of dueling tongues (with Cassie's foot-long enhanced tongue turning out to make her an absolutely amazing kisser), they made their way over to the bed.
Cassie ended up on her back as Lizzie sat on her legs, carefully undoing her skin-tight leotard. She was disappointed as Lizzie pulled it down off her body -- apparently she'd lost a small amount of weight since her days in the Harriet Potter movies, and had sewn a small amount of padding into the bust of her leotard to maintain the apparent cup-size she'd previously sported. Cassie had been looking forward to playing with those nice full C-cups, but she now looked barely able to fill a B.
Well, easily fixed. "I wish your breasts were as big as mine," she muttered under her breath, and moments later she was rewarded with the sight if Lizzie's tits swelling up into fat, juicy, DDs, just like her own. Her hands came up to grope them, paying special attention to her fat nipples, and Lizzie groaned with pleasure, grinding her crotch against Cassie's thigh.
"Ooh, that's so good, they're so sensitive," Lizzie said, her own hands joining Cassie's in playing with her boobs. "Everyone constantly stares at them and I just pretend I don't notice, but I love it. I wish sometimes--" she cut herself off.
"You wish what?" Cassie said, intrigued.
Lizzie bit her lip, still grinding away. "I wish they were even bigger, even harder to ignore. Can you imagine what'd I'd look like if they were twice as big? Three times as big?"
Cassie couldn't help herself. "I wish your breasts *were* three times as big!"
Lizzie shuddered as Cassie's fingers continued to grope and abuse her vast, swelling chest. Within moments, the beautiful movie starlet was sporting tits the size of volleyballs, each one as large as her head and incredibly soft, yet still perky enough to show off her toned midriff.
Losing all composure, Lizzie hooked her leg under Cassie's and began grinding directly on Cassie's own horny crotch. As they fucked, Cassie caught sight of the poster on the wall out of the corner of her eye. In it, Lizzie had the same titanic breasts, making the image even more salacious.