Dear Massi, My sister has only been married a few months and it is good that her husband gets on really well with our family.

But I think he is getting a little too familiar.

He is openly flirty when he talks to me. Everyone laughs it off. But I don't like it. 

He makes jokes how if my sister is out one evening, he can call me round to cook him dinner and sit with him.

He keeps making these innuendos about how me and my sister are physically the same.

I borrowed my sister's shalwar kameez for a dinner function and he came up to me from behind and slapped my bum. He said he thought it was my sister wearing the outfit. He wasn't embarrassed at all. 

He even said that no rishta will ever be good enough for me and that he'll be really jealous when I get married and then he jokingly says if only I could be his second wife.

Everyone says how it's so nice that he cares about me as much as his wife, but honestly, it's a bit sickly.

How on earth do I tell him to back off without making things awkward?

Massi says, Your brother-in-law may not be consciously making you feel uncomfortable and may just be exchanging what he deems to be light hearted banter.

He talks to you in this way in the presence of other people and has not suggested anything untoward to you when you have been alone.

However, if you say this is making you uncomfortable, try maintaining a suitable and reserved distance in his presence. 

Whilst other family members may not empathise with how uncomfortable you feel, you can  adopt a more guarded demeanour in your brother-in-law's presence.