ДНК S06E16 - Выпуск 733. Ребёнок с третьей попытки?

The woman intends to prove to her former lover that she gave birth to a son from him. But he claims that he was the third extra in their bed. Why didn't she file for alimony for seven years if she knew who the dad was? And in which cities of Russia will you have to look for the father of a 7-year-old boy?