After she sets the dummy down, Sable stalks toward Momo, a smirk on her face. "That was mean. Also extremely good training, and I appreciate you very much."

She pulls her mask up to her forehead, wraps her arms around Momo's waist, and presses a gentle kiss to her nose.

Did you mean "presses a kiss to her lips"?  Because that is what is happening unless she specifically acts to avert such an outcome.

Ooh. Sable likes this plan. She was in fact waiting for Momo to cross that line, trying not to pressure her.

Sable kisses Momo very softly, tenderly, gazing gently into her eyes.

She had been trying not to rush things, but after how unfairly attractive that was, she almost physically couldn't stop herself.

"...I..."

"Sable..."

"Do you have any idea how painfully attractive that was?  Because I do, and it is a miracle I'm managing to restrain myself from doing something that I probably ought not with someone I have known for all of a day, no matter how attractive they are."

"If it's anything like as attractive as a ravishingly gorgeous, heart-stoppingly brilliant pro hero making me impressive gear and putting me through intense training so I can keep up with her as a hero," Sable murmurs, still holding Momo close, "I may have some clue."

"...We might not last the week before the tension between what we both want and what we can trust ourselves to give overwhelms us."

This does not stop her from burrowing into the hug, as if it is the sole source of warmth in a hard cold world, without a single shred of remorse.

"I'm pretty good at... let's say resisting desires. I rather doubt I'm going to be the one to break first here," Sable replies, smirking.

She slowly runs her fingers through Momo's hair. "My headmates and I already know exactly what our decision about you is. We're just trying to avoid rushing you."

Momo experiences the following emotion: !!!!!!!!

It's a very good emotion.  It's just also probably going to make her cry.

...Also, what Sable's doing with her hair feels nice.

Sable sighs happily and keeps running her fingers through Momo's hair, slowly, tenderly, fondly. Inspiring loudly positive emotions in girls you're falling for is a pretty great feeling.

Well, they're very quietly loud positive emotions, but they sure are emotions!

"...I...

"This is really nice.  You're really nice."

"Thank you, Momo." Sable smiles tenderly. "You deserve all this and so much more."

...It still feels fundamentally bizarre, even knowing that so many of the factors that complicated the question in her homeworld enough to render it nigh-moot have been summarily rendered moot themselves - albeit with the introduction of several new, worse complications to her life, because that's just how life is for Class A ... anyone close enough to a sufficiently powerful protagonist, probably - to consider that she has time and space in her life for romance, now.  For something that was not the battle-forged ties of Class A, which would ever be a lodestone.  She had contented herself with friendships; it was best not to risk what she had - her family's accumulated wealth could never buy her friends, nor love, once spoiled.  Would, indeed, do the opposite, and make more friends false friends, even amongst her coworkers.

Ultimately, the thing that still surprises her is that she did not plan for this. Had, indeed, planned the opposite - had planned to love silently, lest she ruin what she already had.

To find herself in the grip of a benevolent aspiring goddess that considered this situation untenable, no matter how utterly fucked the situation was around how...

Apparently, she needs to make new plans.

"...I...

"I'm surprised, I think, that this can be something I deserve."

"Love... is something I believe in. It's.... what drives me at a basic level. I feel, down to my bones, that everyone deserves rich, deep, powerful connections if they want them. And I don't have the reach to ensure that for most people. That's not a problem I can fix. But here you are, clever and amazing and gorgeous and already so important to me, and I can make sure you get to have all the joys and richness and connection you want. It's easy for me, because all I have to do is be kind to someone I'm already falling for. Love exalts the soul. Joy exalts the soul. And I want to exalt you."

...Sable is going to be kissed now, because...

What else could you possibly do, when someone says something like that to you, and means it?  Not kiss them?

Sable leans into Momo and kisses her just as eagerly. One hand buries itself in her hair, the other wraps behind her waist and pulls her close. Everything else can wait.

Yes it can.  And yes it will, so help her.

She is but a fumbling novice in these matters, but holding and kissing are hard to mess up, even in the grip of such fervor as Sable has inspired.

She brushes a gloved thumb against Momo's cheek, nipping her lower lip softly as she keeps kissing her. "Your joy sparks my joy, your hurts are mine as well," she murmurs between kisses.

Oh...

All her words have fled her, all of a sudden.

So even as she finds herself more inclined to melting into the kisses she receives, once Sable says that, she finds herself much more able to respond with actions - which is to say, more aggressive kissing.

Sable peppers lines of kisses from Momo's lips, out along her cheek and jaw, and down her neck a bit, before looping back to capture her lips again.

Is it normal, that Sable can fall in love this fast? Not really.

Does she care to do anything about that?

Nope. She's just gonna keep kissing Momo.