There is dominance and Alfa in dogs world, I don’t think this is it. Looks like it’s pure lesbianism, am I right?

Not that I have issues with lesbians as I am gay myself.

What can be done to stop this type of Behaviour?

They both have an obsession, the puppy lick her inside her mouth constantly and the adult, oh well she does that.

I always had dogs and I never seen this type of rubbing before.