According to the video's description, the three were out and about with the intention of filming yet another "how to pick up girls" pranks, when they decided "to do a little twist."
That twist involved using terrible pick-up lines in an effort to get rejected so they could "test" the rejecting party's response to the grand reveal: The person they just rejected is actually the proud owner of a very expensive Lamborghini.
Not to spoil the ending, but the YouTube comments are not kind (then again, when are they ever?).
It's worth noting that Vitaly has been accused of "massaging" pranks in the past, but that's beside the point. If it's all right for the "pick-up artist" to objectify his targets, why is it not all right for the target to then turn around and do the same to him? Discuss.