She must lose more middle buttons like that

Button has more willpower than me

Not even bothering to replace that button, best option. It's just gonna pop off again and no one is gonna see these pajamas.

ChemyChems said:

Not even bothering to replace that button, best option. It's just gonna pop off again and no one is gonna see these pajamas.

She just lost the button, actually. You can see the motion lines across her breasts, indicating that they're shaking with the force of the sudden release.

MarqFJA87 said:

She just lost the button, actually. You can see the motion lines across her breasts, indicating that they're shaking with the force of the sudden release.

While there does seem to be something in the air in front of her (at the very bottom of the picture), the shaking was probably already happening due to mechanical resonance:

"Mechanical resonance is the tendency of a mechanical system to respond at greater amplitude when the frequency of its oscillations matches the system's natural frequency of vibration (its resonance frequency or resonant frequency) closer than it does other frequencies. It may cause violent swaying motions and potentially catastrophic failure in improperly constructed structures including bridges, buildings and airplanes. This is a phenomenon known as resonance disaster."

creaothceann said:

While there does seem to be something in the air in front of her (at the very bottom of the picture), the shaking was probably already happening due to mechanical resonance:

It's a good thing she's built to code then.