It had recently been revealed that rather than being Bogdanoff Twins, they were actually in fact the Bogdanoff Triplets. Rumour has it that the 3rd Bogdanoff was swiftly taken from the family and put up for adoption. Research shows that the third brother is a biz poster who is currently lurking this board right now. It is written in the prophecy that he who rolls trips in this thread is the missing third Bogdanoff. Roll at your own risk, it could be quite a shock finding out the truth that you parents never told you.
Tldr; he who rolls trips is the third Bogdanoff brother.