@Orub2024 You can sign into the same Pandora account on any computer or supported device, as long as you use the same email address and Pandora password.
However, you won't be able to listen to that same Pandora account on multiple devices at the same time.
Unlike broadcast radio, which all drivers hear in the car at the same time, each internet-connected device used to access Pandora receives its own unique stream of personalized music. Similar to other online streaming services, our music licenses limit our ability to stream from a single account on more than one device at a time. As a result, your subscription to Pandora Plus, Pandora Premium, or Pandora Premium Family will only cover the cost of one stream to one device (per Pandora account).
I do see you are currently upgraded to Pandora Plus.
The Premium Family plan would be the best option if you were both looking to utilize the benefits of Pandora Premium at the same time.
Hope this helps explain.
AdamPandora
Orub2024