I have seen this thing happened to others...many times..! And sometimes happened to me as well...and it is very embarrassing. Some just love to act smart...but at the end they make fool of themselves. Okay here is the story. If you don't ever have any idea about the relationship in between two, do not....let me tell you again DO NOT assume and simply ask questions such like below.
Assumption No.1
Hey, your girlfriend ah / boyfriend ah...? (un sarakka ah / boy ah...?)--- towards a siblings who are super hot and cute like Hensel and Gretel....!
Hansel and Gretel..:)
Assumption No.2
Your big sister ah / younger brother ah...? (ungge akka-va / thambi-ya...?) --- towards a couple when the wife looks bigger than her husband...like Cinta Kolesterol couple....!
Cinta Kolesterol pair...:)
Assumption No.3
Your wife ah...? (ungge pombalaiya ah...?) --- to a young looking dads whom walking with his pampered 20+ aged daughter around his hand...who look like Abiyum Naanum father daughter...!
Abiyum Nanum...father and daughter..!
Assumption No.4
Your father ah...? (ungge appa va...?) --- towards a lady who looks younger than her husband...like this famous bollwood couple below...!
Young forever Sri Devi and great man Boney Kapoor..!
And Super Smart Assumption No.5 (THE WORST actually)
(*i think photos are not necessary for this one coz you can see many in Malaysia*)
Talking back or gossiping about relationship of an elderly, wealthy and not-so-good-looking Indian man holding hand of a young, gorgeous and mixed-blood looking teenage girl and assuming them as "sugar-daddy brings call-girl to shopping mall".......But if you really look at the behind of these two....there might be a elderly Chinese lady will be walking with a handsome, mixed-look young man. And then, you will be realizing that they were father and daughter with mother and son....:) And its literally a family....!!
So throw out your stupidity with those annoying questions. The best way is just to ask them "Who is this with you?" despite assuming wrong relationship and embarrassing the other parties...:) Isn't it so simple....! Being simple sometimes will makes you think wiser.. :)