Tama and Malka - Sister and Brother

The first image of the year ...  ^-^'
Well, first of all, a happy new year to you all ...  
Well, back to the drawing, these are Tama and Malka, (as you may already know), except that in my version, they are brothers.
I know it's strange, after all, most consider the two a couple, but they are very similar, and have a good chance of being brothers.