My two kids are a month old (one boy, one girl) and the male rides his sister around humping her constantly. I see pink when he doing this but only about half an inch. I was going to hold off banding him until around 8 weeks to let his plumbing mature (I lost a wether to urinary calculi two years ago so I'm a bit scared of it). Can he breed his sister before 8 weeks? Should I band him sooner? Also, once he's banded can he successfully breed until his testes fall off? Thank you for any advice!