ECB-104 — Bad Friend

Mukai Ai and Atomi Shuri are such good friends that they hang out together even in private... but because they're so close, they also have a rivalry. The two of them make the men ejaculate one after the other, smiling but still looking at each other as rivals, with the condition of "one week of abstinence" as the condition of participation. They coordinate their breathing and help each other out, and while enjoying the reactions of the men, they make them ejaculate prematurely and with double ejaculations. They milk 30 loads of semen.