FKK Clubs
I've visited this club three times since November of last year. It's a short walk from the Hulb S-Bahn station, once you know which direction from it to walk. (I found out the hard way the first time.) The entry fee is 60 euros, and the staff at the front desk is friendly and speaks English. There is a bank of small lockers right at the front desk where you can put your cash and other valuables, then you walk downstairs to a changing area, which is clean and fairly luxurious. The first two times I visited, you had to use the ladies' shower while the men's shower was being renovated -- nothing wrong with that, although I didn't run into ladies showering as often as I would have liked... bad timing on my part. The men's shower -- just across the hall from the ladies' shower -- was operational by my last visit, and quite nice.
After shedding your clothes and hanging them in your locker, you don a bathrobe (or, in my case, just a towel around my waist) walk upstairs from there to the main bar/lounge area. My first visit was on a Tuesday evening, which is the weekly "dessous" night, when the ladies for the most part wear lingerie. Other evenings of the week they're naked, although some wear some kind of fluff or another even then. There was a better-than-decent ratio of girls to men on all three evenings. I rarely encountered any hard-sell, although girls approached me as I hung out at the bar or cruised around the place admiring the talent. They were friendly rather than pushy, and the resulting conversation made for a useful way to figure out who would be a good pick. (I like to ask the ones with hot bodies -- and there were quite a few -- if they like to show off in a thong at the beach, and if they like showing off their lovely legs and asses in hotpants during the summer... more than one answered yes, which is a turn-on for me.) I avoided a couple of Romanian girls who always seemed to be there -- good looking, but a bit too pushy seeking a two-girl session.
Just about every girl I met spoke English well enough to carry on a decent conversation, and many were quite fluent. The first of my two favorites was Donni, a half-German, half-Syrian beauty whose lovely ass in a thong got my attention on dessous night (she confirmed she wears one at the beach as well 
). We went downstairs, she dropped her thong, and we then had a sultry session in the jacuzzi, DFK and DATY included, before heading back upstairs to a bed on the edge of the lounge area. (I prefer public action in this kind of setting, rather than going to one of the private rooms upstairs, and, with just a see-through curtain separating us from the main area, everyone could see us.) She administered a delicate, delightful BBBJ. We moved to missionary as I struggled to control my nut, finally blowing my load in doggy.
The second of my two favorites is Janette, a blond German beauty from Munich. I've done it with her now on two separate occasions. In both instances, we started off with conversation, kissing, and BBBJ (just as delicate and delightful as Donni's) in the porn cinema, moving from there to the "exhibitionist" bed just off the main lounge area, mentioned above. She rode me cowgirl with zest both times. I then pumped her in missionary as long as I humanly could before finally exploding in her.
This is the first and so far only FKK I've visited. I intend to give other FKKs in Germany a try but am sure I'll be back at Sakura sooner or later.