Leasha I think there's a difference between feeling uncomfortable and not allowing it IMO. What I mean is as a mother I can't imagine EVER being comfortable about it, but you'd just have to deal with it yk?

Lets face it, most of the time we don't like to think of (or imagine) ANYONE DTD....Mum and Dad, Sister and DP etc......in your house. I know I don't, it makes me uncomfortable.

But given her Mum is ok with it I would just bit my lip and go with it. And put it down to it just being an uncomfortable train of thought about anyone....not just your niece.

HTH.