So I came across this phrase:
友達と4人で一つずつ弁当を買ったら。。。
So what does 友達と4人で mean? A friend plus 4 people? 4 people who happen to be friends? With the friend they are now 4 people?
I have never seen this construction, usually it´s either 友達が4人で or 4人の友達で that I encounter, hence my confusion. Any help would be appreciated.