国产成人亚洲精品无码青app,白丝紧致爆乳自慰喷水,国产疯狂女同互磨高潮在线观看,jizzjizz少妇亚洲水多

Zhang Pingcheng,Bai Chuli,Cheng Yingjun,Fang Ye.

Science In China(Series B),39(4),378-385(1996)