Just flew jkf -icn last week on KE 86 in J and was able to access the AF lounge without a problem. AF dragon said that KE had their own lounge and I told her I figured that the French knew more about food and wine so I would prefer to use their lounge.

She laughed and let my wife, myself and another J passenger in.

I too did enjoy the free duval Leroy champagne vs the crap that is available in the SC by the glass.