My two female Sphinx and husky rats keep humping eachother and the consiquence of this is my sphinx is getting scatches all over her. Also she does this really weird thing where she like does a combination of licking and biting on the other ones back which then leads to her being pinned to the floor which isnt very nice! Does anyone elses rat do this? and will she grow out of it? because it must be so annoying for the husky!