Come on, Lisa, aren't you supposed to be vegan/vegetarian? Haha, Milhouse is so hilarious character! Also on my tumblr: [link] (Hand-inked and then digitally colored) This is fan art! The Simpsons (c) Matt Groening.
Hmm, I'm not sure... at least I don't have anything against that they would be a couple when they are older! But at least in the "future" episodes Milhouse still seems to be a loser and Lisa doesn't seem to like losers xD But everytime Milhouse is acting less clingy, Lisa seems to like him! In one rather new episode she actually was very jealous when Milhouse had a girlfriend!
Yeah, I know what is the difference between vegan and vegetarian! Well, in the "Lisa the Vegetarian" episode she became a vegetarian,...(haha, a bit dumb sentence xD) but I had a feeling in some newer episode that she was a vegan! Though rarely so young kids are allowed to be vegans, at least in western countries I guess... so yeah, she's a vegetarian.