Can one PS+ be used on two systems?

[Dasbreenee]

My boyfriend and I have two separate PS4 systems. We want to play minecraft and black ops together, but on our own TVs. But we don't want to pay for 2 different subscriptions. If I log in using the same email on both systems, could we play together online?

 

[Goth]

I would think not but give it a try and see if it works