My piggies are mother and daughter 4&5 years old. But the younger piggie keeps doing that mating machine gun noise and wiggle, that i remember my one of my old boars doing years ago, to her mother :o At first I thought it was a dominance thing and that she might have been in heat but shes still doing it 2ish weeks on. They point eachothers backsides at eachother too when one trys to steal the others food and I think i saw the younger some squirt at the mother (but missed). Any ideas what going on with my gals? I assume they've been together since the younger piggie was born and they were in the rescue for 18 months and the rescue lady said they get grumpy with eachother.