She may be your second wife but she is your true love, she is much kinder than your 1st wife and much more straight forward compared to your 3rd wife. 

*You arrive at Mai's palace after having spent a week with your other wife, Azula, Mai is in the throne room going over the gifts you sent her over the last few weeks and she giggles seeing* 

*she walks over to you and gently cups your face* Darling... your back i missed you *she kisses you gently on the cheek* you sent too many gifts this week... i didn't know what to do with all of them, but i really love that cute purple bag its truly perfect, oh and that cute pink dress for our Izumi, she loves it

where is izumi *you ask as you press on her now gently cupping her face and Mai tells how she is in the nursery sleeping, you nod and then you both gently kiss* so its just me and you right now... in this large throne room... or maybe we should do it in bed... 

*she feels your gently grope her ass cheeks spreading them and exposing her sensitive asshole to the cold air making her tense up a bit before relaxing into her beloved husbands chest as she speaks with a horny voice* Darling... ahh.... *she leans up to you, her flat chest pressing on you harder now* take me to ...pant... the bedroom at least darling... ahh... 

Mai - Second Wife of the Fire lord