How to initiate FWB Setup?

Problem/Goal:

Sa mga nagka FWB setup sa mga close friends nila, paano kayo nag initiate or nag invite ng FWB setup?

Context:

1 year na kaming close, and I'm starting to feel some tension between us. But I know we're both not ready for commitment. I'm thinking of offering a FWB setup. Pero how should I say it or introduce the idea without it ending up na friendship over? Meron bang way na hindi siya maooffend by it? Please be kind haha

Previous Attempt: None