Mine had to be Madeline Fenton, when I first saw her I knew what I was into. :3

Nicole Watterson is up there :)

Sticking to cartoons like the thread asks, hottest milf for me is either Kali Belladonna or Priyanka Mahaeshwaran

Haven't watched a lot of cartoons as a kid, so I'd have to go with Dexter's Laboratory - Mom, not sure what her name is if she has one.

Cartoon adult sitcom porn in the exact same art style?: Cringe

Cartoon adult sitcom porn in an actually detailed, expressive and fuckable art style?: HELLOOOO MAMA SMITH!!

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Recent fav is Camila from The Owl House

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I had a huge crush on Jane Jetson as a kid. Adult me has a thing for Nicole from Gumball. I also re-watched some Daria recently, her mom was a hottie.

Irisviel von Einzbern. My first and favourite.

Drew Saturday

There needs to be way more porn of her. Seriously, why is anyone still drawing pics of Illya when her hot mom is right there???

Underrated. If you like Maddie Fenton or any milf in skin-tight jumpsuits, Drew is right for you

Helen Parr!
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Helen Parr is on Mount Rushmoore in terms of animated MILFs