Lufthansa Lounge access at EWR and FRA
We will be traveling with another couple this October from EWR-FRA-TLV booked through United (as MilegePlus Members) codeshared flying Business on Lufthansa 748i. My wife and I are flying Business class. I'm also *Gold. Our friends are flying coach.
As we are both flying Business and should gain access to the Lounge, will I be able to invite one of my friends and pay for the other to join us in the lounge at EWR?
Also, we have a 2.5 hour layover in FRA, how would this arrangement work out?
Thank you for your suggestions!