I'll not go into too much detail (at least, I say that as I begin this entry), but over the last few weeks, I've been going about a half-dozen times to one of the local gay baths (i.e. male saunas).
The top three floors have hotels rooms from about $50 to $100 or so per night. Atop the seventh floor is a flat sundeck, partially hidden from the surrounding buildings along with a row of a partly enclosed shower room with 3 open showers side by side and a separate toilet. Although complete nudity is forbidden on the roof because of possible neighbor's complaints, there can still be plenty to see
However, about 30 minutes later - after I had sunned myself on the top floor sun roof for a bit, I came back down to the 5th floor Group Room and found a couple fucking at the first floor mat near the door. I could only see the guy's ass of the one who was on top. Man, did it look delicious and so I leaned up behind his butt and took a good lick. The owner of that fine ass turned around to look and we recognized each other from earlier. This time I could see his entire naked body and partly shaved head (no sides - just having