You have all experienced it and witnessed it. The "friend" coming in wanting to drag off you target to "dance".
Now there can be many reasons for this. Perhaps your target was uncomfortable and signaled for help, altough thats usually not the reason for us PUAs since we know how not to be creepy or boring. Another reason could be jealousy, the girl mentality of "since im ugly and cant get no men, my friend isnt going to get any either". (BTW im thinking of secretly make it a trend for girls not to Cunt block her friend just like its a No-No for a guy to cockblock his friend , and thus eliminate this phenomenon

).
Another reason which i have experienced on many occasions is that her friend is actually intrested in me and is trying to steal me from her friend.
Theese are some of the most popular reasons for why this occurs.
Its usually not a problem for me because iv been gaming and connecting with the girl so well that she just says "NO!" plain out loud to her friend, even tough the friend keeps trying to pull her, but i would still like to hear how you usually counter this move.
IF i see that the girl is about to leave but kinda wants to stay but she doesnt wanna backstab her friend , i usually go with somthing like "Yeah you go dance, youl get her in a minute" or try to engage her friend in a conversation but i have no canned technique for this and even tough i like going natural and be spontaneous i think this is one of those situations that deserve a canned lined, so what do you guys do when this situation occurs?