In Germany, the legality of public sexual activities is a complex and nuanced topic, influenced by both legislation and societal norms.

While certain forms of public nudity and sexual expression are permitted, there are significant limitations and potential legal consequences to consider.

Broadly speaking, German law differentiates between public indecency (Exhibitionismus) and public sexual acts (Exhibitionistische Handlungen).

Exhibitionismus, or the intentional display of one's genitals in public, is generally prohibited and can result in fines or even imprisonment. - https://germanyfocusguide.com/blog/can-you-legally-publicly-have-sex-in-germany/?unique_id_7gkwl73q

"The Intricacies of Public Sexuality in Germany: An Examination of Laws and Cultural Norms"