are having fun, are enjoying ourselves
Поэтому мы веселимся.
That's why we're having fun.
— Виктория (2015)
Веселимся?
Having fun?
— Такси (1998)
Мы веселимся.
We’re having fun.
— Сенна (2010)
А мы тут страшно, страшно веселимся.
And here we are having a terribly, terribly fun time.
— Великая красота (2013)