Thats not juice!

Wilford drinks one of marvins potions mistaking it for grape juice ever since then he been like a puppy to marvin always near him no matter what. What will marvin do? Try to fix it? Let Wilford stay like this forever? Come find out.
(My story updates will not have schedules due to school and many other things, there will be smut but I will put warnings in the title of the chapter. If something is spelled wrong don't come for me)