>>82189071 (OP)
I have done it, it used to be my addiction, I had a 325 pound Alabama whore sit on my face, I got a full body yeast infection, be careful
I would fuck it by using my moderately sized dick.
I would also encourage her to lose weight.
Some fatties can be salvaged before they transform into landwhales.
Generally if she has no cellulite or hanging fats you can help her lose weight by working out and fucking a lot.
But I would never lick a pussy.