She's so caught up in her own misery, she hardly notices the pokemon's stare. This is her lot in life; hormonal imbalance makes her lactate all the time, and some weird bladder thing with a rather long and complicated name she's never cared to learn means she urinates long and often. She'd been told not to go on her journey. That her conditions meant traveling and catching pokemon would be too difficult. Here she was though, hunting the great and famed Mewtwo. Imagine the surprise of her mother and the Professor when she came back home with him! They'd have no choice but to stop coddling her and just let her travel as she pleased.
Her reverie is broken by the yell of a strange voice, and a flash of purple light. Shock is the most prevalent emotion. Then a twinge of embarrassment, because her tits are out and she's leaking breast milk all over the damn place. It's all quickly followed by elation, wherein she jumps to her feet and eagerly draws a Pokeball at random. It doesn't matter who it is, her team is strong. But he's not taking an aggressive stance. He seems...rather perplexed, actually. And now she's just as confused.
"I-I'm here to battle you!" It doesn't sound all that confident. "And catch you!" He's still staring. Slowly, Sable crosses her arms over her chest, wincing at the stickiness of unchecked milk flowing over her skin. "What? Never seen tits before? Stop staring!"
This is weird. This isn't how she'd wanted it to go. She was supposed to be fully clothed, and not sweaty, and not fucking feeling like she's about to burst if she doesn't piss right this very second. "O-Okay, you....you stay right there! I'll be back in a second!"
Turning, she rushes to the nearest tree, and around it (she didn't want some weird, probably-pervert pokemon watching her urinate, after all.) Stumbling over her shorts, she only just manages to shove them down her thighs and squat out of the way before releasing a thick, strong stream of urine. Groaning, she buries her hands in her face and tries not to die of embarrassment. This pokemon could talk, if she did catch it, what would it tell other people? This wasn't exactly starting out the way she'd wanted it to at all.