ДНК S02E180 - Выпуск 234. У двойняшек из хостела нашёлся отец?

After the alleged cuckoo mother abandoned the twin children in the hostel, their alleged father showed up. He flew to Russia to take a DNA test and pick up the abandoned babies. But the alleged grandmother doesn't believe the 22-year-old.
So who are the biological parents of the children abandoned in the hostel, who do not even have a birth certificate?