ENDX-446 Slut G-cup sister and virgin brother compete in erotic baseball games

Hinako, a bank clerk, and her brother Yoshio, a university student, face off in a baseball game for a prize. When Hinako wins, she uses a help card that requires Yoshio to avoid an erection while kissing, but she fails. The game escalates to a denma challenge on her pussy, leading to an incontinence orgasm and revealing her hidden slut side. Runs 57 minutes, released in 2023.