Mumbai, Aug 11 : Bollywood actress Sonam Kapoor Ahuja in the latest episode of 'Koffee With Karan' revealed why she is thankful to her brother Arjun Kapoor's ladylove Malaika Arora. In the segment, #siblingtrolls, Sonam picked out a cards which read: "Who is the s***tier sibling?" Sonam burst out laughing and said: "I don't even need to say it's self explanatory." Karan pointing at Arjun: "I'll answer this on her behalf, you are definitely the s**tier sibling." The actor added that he is now "retired". Karan sided with Arjun and said: "And no shaming. It's great I'd love to be one" Sonam then thanked Malaika for being in her brother's life. She said: "Thank god for Malla fora. We had to deal with." Replying to his sister, Arjun asked: "What does this mean.. I would have continued if i didn't have a gf. It was a phase." The actor then said: "Dont make me say things that I would regret. It's the sanctity of the relationship that keeps me grounded." /IANS