Exclusive, pero open to ending the set-up if any one of us decides to get into a relationship. From personal experience kasi, an FWB set-up are for those who find each other physically attractive and sexually compatible, pero wala yung emotional aspect that would make it a working serious relationship.
Second thing is hindi selosa for the same reasons stated in the previous paragraph.
Third, hindi lang magkikita para mag-sex. That's more of a booty-call set-up. Friends with benefits meaning may mga "friendly dates" or chill hangouts lang that may or may not lead to sex.
Lastly is personal preference lang naman, but not a dealbreaker is if willing si FWB to bring a female friend along during our "dates" and sexy times.