rule 34 ai generated belly button blonde hair blue eyes blush blushing blushing at viewer bowtie breasts exposed breasts out cardigan classroom of the elite curvy curvy body curvy female curvy figure curvy hips karuizawa kei looking at viewer nipples red cardigan school school desk school girl school uniform schoolgirl schoolgirl uniform shirt shirt lift shirt pull shirt up slim slim waist uniform youkoso jitsuryoku shijou shugi no kyoushitsu e 7694578