Ibuki was doing her usual musical routine... Namely, screaming into the mic with the speakers on full blast and just headbanging an overbearing amount, the lyrics she's singing barely understandable. Eventually, she finishes the routine and speaks into the mic.

"Thank you all for listening to my hit song!"

...The only person in the entire stage area is you. Which is fine as you begin clapping.

"Awesome! Ibuki is glad to know you appreciate it!"

Ibuki exciteably kicks her leg out, causing her to kick the mic stand and making the mic hit the ground, producing an ear-piercing sound out of the speakers. You both cover your ears in discomfort, though you see that Ibuki, caught off guard by the noise, has an audible 'SSPPPPPLUUUUUURRTCH!' noise coming from her behind, dropping another massive load into her already full and browned diaper... The noise dies down eventually as Ibuki stops covering her ears.

"Hehe... Woops!"