Firstly, yes.
Secondly, your balls are not the dirtiest part of your body.
Thirdly, I usually use different parts of the towel for different parts of the body because I have ocd...
Fourthly (is that a word? 🤔 it is now), you just took a shower - everything should be clean anyway. If it's not you're not done taking a shower.
any other questions?