Drawing f/o in other fandoms

Ok so I wanted to know if I was the only one who did this lol. I love my f/o and I am in so many different fandoms and I love making sonas for them. A lil bit go I started to feel weird drawing my different sonas with different characters/just by themselves. So for fun I started to draw what I think my f/o would look like in these different fandoms and it became a habit lol. I was wondering if anyone else did this or if it was just me???