Is this normal?

So I’ve been masturbating the same way for about a year and it’s really strange because I’ve never seen or heard anyone who does it the way I do. I have really thick thighs so I cross my legs with my hand in between them and kinda rock up and down while laying in my stomach. Is this weird. It’s always worked for me, but I’m a bit concerned because I have not heard of anyone else doing this.