What am I supposed to do with this?

>plastic slut getting used as it was intended
Amazing, how did you come to this conclusion?

I only do that with the ones I buy used, they're often apparently years old and who knows what may have touched them

Use it to get through HOV lanes, if you get busted by the coppers you'll have some explaining to do on multiple levels.

In the pooper with it

Unless you use soap, the cum will still show up under a blacklight