I have seen many onscreen couple doing masti,pulling legs of each other,talking about each other n also sing song when media asked.Some r still friends n some r not in touch.It's usual to actors to give interview like this.I knew 2 actors made fun of their Heroines bathroom going habit time n again.
Sid has sung the same song to RJ also.When she asked to praise her.He said we r sitting.If we r standing I would have twirled you.Having seen some iv's of Sid during his movie promotion.He is like that only.Fun loving n love to pull others leg.
I think Sid has a person.Understand other person so well.Some persons r like that within 2 or 3 meetings.They understand other person's most of the things.
Also both shoot for 12 hrs.So they have developed nice friendship bond.Reg speaking only about Jas N TwiNj chemistry.Those questions were asked by fans.Always media ask the main leads how is ur off-screen equation with each other n what you have to say about ur on screen chemistry.Share any funny moment or say who lauigh most.These r normal questions asked by media.
I don't think Sid has something for Jas.They r good friends.Like friends do masti n pull each others leg.They also do it.
I feel we should not get to involved in their off-screen equation n also over analyze their iv's.