Is it possible to have two minecraft accounts on one mojang account?

I was going to use Multi-MC to test out a mod to see if it would work in multiplayer, but then i realized: "Wait, i have to make a second Minecraft account." So i did that, but even though i already have the game on one account, its making me re-buy the game to be able to test this out. Does anyone have a solution for this? It would mean a lot.

Unfortunately, you will have to buy a new Minecraft account in order to play with two different accounts. One possible reason Minecraft might do this is so that people cannot illegitimately give out free Minecraft licenses to others. I found this answer from a previous answer to a related question.