The first one looks plausible, but if you look closely, you can see 2 whole tongues, so it's a nice video editing job.
The second an obvious chop, gross nonetheless.
Laws
The legality of tongue splitting will vary greatly depending on the country and within those countries, individual states or territories. Some examples are given below, but do not encompass all the laws regarding this subject.
Some branches of the US military ban body modifications that detract from a professional military image and explicitly include tongue splitting or forking as examples.[6]
Illinois was the first state in the US to make tongue splitting illegal in 2003. Since then New York, Delaware and Texas have enacted laws that either ban the practice, ban the procedure on minors without parental consent or restricted it to being performed by only doctors and/or dentists.[7]
In 2009 the Australian state of Victoria enacted a ban on splitting the tongues of minors.[8