You could always just leave them alone and let them have their own fun or offer them some things that interest the both of them to do together that way everyone has fun!
Chat with our AI personalities
hmm... 11 ..ok well try and get a theme... like chocolate spa...things like that. Also lloking up games online is good. i found some. http://www.party411.com/gameguide-sleepovers.html
Stardew Valley is the best game for kids. It is easy to play and does not contain any harmful or abusive content.
98.6
Play in the RAIN!
I think so, because you control the whole game. But if that 11 year old likes to torture people, watch them woohoo, then not at all. He/She must be mature, just sayin'