Transcript of the above video:

As the title of this video suggests, we are discussing K-2 Derivative Visas for children of K-1 fiancée's; folks who are seeking a K-1 Fiancé Visa to the United States. Yes, it is possible to either bring a child of a fiancée with the fiancée to the United States or it is possible to wait and use a K-2 Visa subsequent to the K-1 arrival; to the person with the K-1 visa's arrival in the United States, the arrival of the K-1 fiancée.

Now depending on circumstances, we have seen this work both ways depending on the convenience of both parties involved and in many cases the K-1 Fiancé Visa holder they will get married and go ahead and start adjustment of status and then we may deal with the K-2 a few months later. Now there are some deadlines most notably one year from the issuance of the K-1 you need to be dealing with the K-2. It is interesting, there are some quirks associated with the K-2 for example 21 years of age, associated with the possible adjustment of status or issuance of the visa for that matter as opposed to standard Immigrant Visas generally you are looking at 18 as being the threshold, so there are some differences there. 

Long story short yeah, the K-2 Visa is used by the derivative child of a K-1 fiancée. The other thing to keep in mind is depending on the circumstances of the case, an Immigrant Visa may also be a viable alternative for the stepchild of an American citizen.