Cock Rings - Balls Slipping Out

Hello,

I like to wear cock rings around my full package during sex: shaft and balls. I use both silicone and my_hard-wear rings.

I notice that during sex, my balls keep slipping out of the ring, thus interfering with my hardness.

Has anyone experienced this, and has any ideas regarding how to help.

Thanks - ON

I have used a doubled over well lubed 1/2 inch rubber band with good success.