Obligatory mobile-user warning.  And also insignificant story I'm curious about warning.

No one has actually gotten upset about this, but I'm just curious what people think of this situation.  So my dad ended up buying two tubs of ice cream for me(18F) and my brother(18M).  One of them was chocolate chip cookie dough flavor, which both me and my brother like, and one was mint chocolate chip flavor, which I like but my brother doesn't.  So my brother scoops up cookie dough ice cream and I scoop up both flavors since those are the flavors we like.  

Over the course of the ice cream's existence, I eat a bit of each flavor over the course of a few days until my brother ends up eating the rest of the cookie dough ice cream and then I end up finishing the mint ice cream.  I ended up getting more ice cream than my brother, but at the same time I didn't choose the flavors my dad got and it was my brother's choice not to eat the mint ice cream.  No one has made a fuss over it or even mentioned it, but I'm just wondering if eating the flavor of ice cream that we both like when I could eat the flavor he didn't like so that the ice cream was split evenly was an asshole move.  So AITA for getting more of the ice cream or was eating both flavors a fair thing to do?