There are 2 things that you will need to keep in mind
1. When entering the PayPal email where you will get paid in E-junkie Admin > Profile, E-junkie will not let you use the same PayPal email in 2 accounts. But since you have multiple emails associated with a single PayPal account, you can use a different PayPal email for each
E-junkie account and then can still be associated with a single PayPal account.
2. To start your paid subscription with E-junkie, you need to click the "subscribe" button in Admin > Start Subscription. When you login to your PayPal account and you are already using that account to pay for a subscription to an existing E-junkie account, PayPal will ask
you that whether you want to create a new subscription of modify the exiting one. Just make sure that you select "create a new subscription".