May I suggest some self control then??
I have no idea what it's like to get kicked in the balls, but ask your wife to do it to you about 50-60 times as fast as she can. Then imagine that's what if feels like to get your cervix pummeled by a fat dick.
Either she starves, and let's the anticipation grow for when you two can do it again, you use your toys and do what you can, or she gets hurt some more.
If I had to choose from no sex at all, painful sex, or a good orgasm from a toy, the choice pretty much chooses itself.