At my local club there’s a girl who comes right up and gives me the “wanna dance?” while I’m sitting at the bar having a conversation with another girl. I’ve said yes at least once.
A long time ago in a club far away I was sitting with a tall blonde I haven’t seen there before. We were about to go to VIP when a shorter skinny blonde barged in and said “hey, I was looking at him first.” To my confusion the first girl was OK with this and the short girl was soon dragging me back to the VIP. After we were done, she informed me she and the first girl were sisters.


Most of the clubs I've gone to have had at least an unofficial policy against poaching, almost certainly because of the fights and drama that result.
But it still happens on occasion. A dancer tried to lure me away while a dancer I was chatting with took her turn on stage before our VIP. The dancer got off stage in the middle of her set and pulled the poacher away. I didn't hear everything that passed between them, but the phrase "... cut your tits off..." figured prominently.
The poached stomped off to the dressing room, my dancer finished her set, and we had a great VIP.