[Jemma]

Jemma is becoming quite possessive. OWN is more like it. If any family comes over she owns them. If my son is sitting is and I walk towards him she jumps on his lap and starts to growl at me. She is wagging her tail the entire time. If I put my hand on my son's foot she will put her mouth on my hand as a warning but she does not bite. If I bend down and ask her for a kiss. She gives me kisses. She will do this with everybody but that tail of hers is always wagging. How can I stop her from thinking she owns everybody?
Thanks all