Add Axessubplot object to specific subplot index

There is an easy way to generate word frequency plots with NLTK:

my_plot = nltk.FreqDist(some_dynamically_changing_list[0]).plot(20)

some_dynamically_changing_list contains a list of texts that I want to see the word frequency for. The resulting my_plot is an AxesSubplot object. I want to be able to take this object and directly insert it to a dynamically sized subplotted grid. The closest I've gotten to the solution after scouring SO and Google is this. However, I have an issue because I don't want to use plt's plot function. So for example I'd have a dynamic subplot grid:

import matplotlib.pyplot as plt

tot = len(some_dynamically_changing_list)
cols = 5
rows = tot // cols 

if tot % cols != 0:
    rows += 1
    
position = range(1, tot + 1)

fig = plt.figure()
for k in range(tot):
    ax = fig.add_subplot(rows, cols, position[k])

    my_plot = nltk.FreqDist(some_dynamically_changing_list[k]).plot(20)
    ax.plot(my_plot) #This is where I have my issue. 

Of course this won't work, as ax.plot expects data, not a plot. But I want to plug my my_plot into that specific slot. How can I do that (if I can)?