My Big and Small Beautiful Flowers

Song Xiaodong met a girl by chance in Las Vegas two years ago. The two went to register for marriage just to have fun and spent a wonderful night. Two years later, when I returned home, a pair of twin sisters lived in my home. They looked exactly the same, and even their voices were indistinguishable. The most important thing is that one of them should be the one he registered for marriage two years ago, but neither of them admitted what happened at the time, and even Song Xiaodong couldn't tell. What kind of situation is this? Song Xiaodong is also confused... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.