Mizuki Gets Butt Smashed

Mizuki sees Hayumi standing up while writing some notes. Wanting to see her butt she glomps Hayumi's butt, surprising her. The surprise causes her butt to expand, making her lose her balance and fall backwards onto Mizuki. Hayumi scolds Mizuki on why she shouldn't surprise her like that but Mizuki doesn't seem to hear single word Hayumi says as she enjoys the moment of being this close to Hayumi's expanded butt.