-Цитата от sta-sta дайте ссылку на эту норму права
https://en.wikipedia.org/wiki/Gang_bang - Gang bangs are not defined by the precise number of participants, but usually involve more than three people and may involve a dozen or more.
- By contrast, three people engaged in sex is normally referred to as a threesome, and four people are normally referred to as a foursome.
Википедия говорит, что более трех. Ошибся знач чутка