Sleeping position with big Quads

I have decently big Quads and Adductors that when I try to sleep on my side it usually ends in my legs squishing my balls and the pressure starts to hurt on only one from it being squished down but iv been trying to get used to it and after a week I have to unlock to sleep, is the only solution to become a back sleeper, I still need to try with a strap though which might help