Exclusive big sister Saki Mitsui's urination ban lifted! She was told that the shoot would involve a lot of squirting, and so the day of the shoot arrived. She suddenly squirts during the interview, and has sex that makes her squirt in large quantities! When she tries to go to the bathroom during the break, the director stops her, and she urinates in public for the first time, which is extremely embarrassing! She pees again during lovey-dovey urination sex, and is covered in bodily fluids during sweaty sex, cumming on the verge of passing out! Every corner features the big sister's super-rich first urination and squirting splashes!