Ball bouncing with a toddler

Its hilariously cute, I'm 36 weeks and I got my ball out to start working my pelvis. My toddler thinks its the most amazing thing in the world. Everytime he sees it he rolls it over to me and starts bouncing. So I sit on it and he freaks out until I pick him up and bounce with him. The only comfortable way to do this is for him to be on top on my stomach at this point. I cannot be on it without him on me. Hopefully bouncing with a toddler on my belly will put me onto labor over the next few weeks lol