Shion Yumi makes a surprise move to OPPAI and allows internal ejaculation for the first time. Her natural breasts have grown from a 100cm I-cup to a 102cm J-cup, but the new experience leaves her as nervous as she was at her debut. Bare penetration feels so intense that she cums with only the tip inside. When a huge load is pumped deep into her, she squirts and repeatedly loses herself in explosive vaginal orgasms.