That English title IT'S NO SIN WITH AUNT CAROLYN doesn't really make any sense because Marina Frajese's character is clearly named Gloria; not Carolyn. Of course, the character may have a different name in the English version but Starlight only lists an Italian version and I've never heard of an English dub for this film. Wish there was, though, because it's not a bad film at all. It far better realized and much more sensual than the more well-known MY SWEDISH AUNT (1980), which is a similarly-themed hardcore flick where Marina once again plays a frivolous aunt who attracts the attention of her sexually awakening nephew. She would go on to play the seductive aunt in a number of films but IMO her performance in CON LA ZIA was the best.