35D 'Do sex repeatedly with mate in social fashion'
Although I completed this crossword very quickly, I am troubled by my inability to fully parse my answer which is, 'CONVIVIALLY'. The 'CON' and 'ALLY' parts are obvious but 'VIVI'? Other than a repeated reference to the number 6 in Roman numerals, I don't understand any connection with sex.....unless I have led a really sheltered life. Is it perhaps a dialect thing - six (sex)?