Absolutely not a Kindle under any circumstances, we've just had one die. It's the replacement for the previous one that was the replacement for the one that died while still under warranty, Seriously, the thing is just not fit to be on sale.
Hence the little book on the market re uses for...
We bought one for DS1 for his birthday six months ago, but not sure how much he uses it. DH bought me the Sony version a few years ago but unfortunately, for me it's just another of those electronic "thingies" which sound like a good idea but which I find are less appealing in practice.
Unfortunately being able to share my books is exactly what I don't want her to be able to do! (Scuttles off before too many questions are asked re. taste in literature )
Just let her get the Mills and Boon out of her system now - she'll soon move on and stop reading yours