I was in London last week, slept next door to a German couple. The woman was about 35-36 years old. Not attractive, but not not ugly either. There was no action for several nights, but they finally fucked on the last day. As soon as I woke up I went out and put my MP3 player near their door. They had the tv (or radio) on, so quality is not excellent.
The attached file contains the most erotic part of the whole recording. You can hear him licking her. She says things like "ja" (yes), "mach weiter" (go on) and when she's about to come "jetzt! jetzt!" (now! now!). God, I'm fond of these orgasm-announcing ladies!