First, it was a secret sister gift exchange, and now a secret wine bottle exchange is hitting Facebook.

Basically, a friend will tag you in the post, asking you to buy one bottle of wine and in return, you will get anywhere from 6 to 36 more.

If you haven’t seen this in your feed yet, be on the lookout because even though it might be tempting — especially to wine lovers — taking part in one of these exchanges is illegal.

It’s considered a form of gambling because you…