I don't know what happened! I have read up on every possible rule for mating, and it says always that only two adults can mate. Well my boyfriend has a V4 on and his was an age 4 Mametchi and I had a age 2 teen Zouritchi. Mametchi had already four hearts for my Zouritchi but my Zouritchi still only had four faces. I went to connect them to exchange a present and they mated! I thought you couldn't mate with a teen! And to add to that my Zouritchi still only has four faces after mating with him. What's wrong with my tama, was this a glitch in the system?