We approached a pair of college student siblings on the street and invited them to our studio under the pretense of a love survey! We challenged them to an extreme mission in a private room: frottage → condom sex → bareback sex. If the sister didn't orgasm until the end, she would win a high cash prize! Even during condom sex, the sister had a confident smile, but the moment a real penis was inserted, she was overwhelmed by the pleasure of unprotected sex and experienced multiple orgasms! Sisters demanding ejaculation inside their heightened sensitivity vaginas emerged one after another!
