打手枪后，她的裤子越来越松了 - 复习第4集

Hikaru-chan has a D-cup, and Ema-chan has a G-cup. They can be distracted by talking about secret options, but if you don't give up and keep negotiating, they'll agree to let you touch them and give you a handjob. At first, they'll all refuse, but once they start doing erotic things, they won't be able to stop.