Colouring her in

She rather hopes that I’ll enjoy her look  
When she is coloured in – not shades of grey;  
But, more a rainbow hue: when brought to book,  
These colours are the ones to which she’ll pay  
A good deal of attention – each blue bruise,  
Nicely offsets the darker shades of pink;  
These mark her backside, although you might choose  
To admire lines that bought her to the brink  
Of crying out for more; a nice red font  
Might represent them well, until they change  
To darker browns that mark her, to be blunt,  
As mine, when she is bent and well-arranged  
And ready for each blow across the slopes  
Of her pale flesh, or so, at least, she hopes.