Two little boys

We are so lucky to have all 4 grandchildren living close by but not as lucky as their parents who have a free babysitting service on tap. This evening we are looking after our 3 year old grand-daughter and her 4 month old brother who thank goodness are in bed so we could watch Strictly on catch up
This afternoon we had our 5 and 3 year old who at one point wanted to play sleeping tigers which is where I managed to blip their gorgeous heads.
Our blond bombshell thinks he and I have the same hair colour, now how do I get out of that one?