In Berlin erotic massage studio employees might straight up ask if you want a happy ending, either during the booking or massage itself. Many parlors are just brothels so consider the massage as regular foreplay. The actual services they offer are pretty common: your usual four hands massage, Nuru, Thai, Lingam etc. nothing out of ordinary.
Studios are spread all over the city but only a handful really stands out. The few massage studios in Berlin I would recommend include: Ekstase (https://www.ekstase-massage.de/) at Ebertystraße 29 with nice, cozy interiors and Paris No.5 (http://www.paris-no5.de) which is a bit more on the exclusive, high-end side, and you can find on Pariser Str. 3. The Berlin erotic services directory Lila Lust (http://lila-lust.de/) offers also good opportunities to find parlors and independent masseuses who put their listings and profiles there.