I thought they used different batters.

Aren't cupcakes generally sweeter even without the frosting?

Well, I know if I add milk, the muffin mix becomes cookie batter. Says so on teh box.

Yeah, they're different. Cupcakes are a sweet dessert, and muffins are more bread-like, which is why they are more common for breakfast in my opinion. I like muffins better. 

^I'm sure you loooooove muffins. Especially hot and fresh ones.

we must question his gender once again