So my gf (26) and I (MTF26) have been together for 3 years (our anniversary is next week💗) and have the intention of staying together long term.

I want to casually see other people so I proposed the idea of being open to the extent that: • we each have permission to casually see/date/experience life with/hook up with others. • Nothing romantic and no gifts, • and not too much time spent with them to the point it takes away from the primary relationship. • We don’t want to share the identity of our hookups to one another but we want to communicate that we did see someone. • We will use protection on other people and on one another if one does hook up with someone.

She was stuck in a monogamy brain & was having a hard time but has done some research of her own and is open to the idea now.

Bottom line is, we want to preserve our relationship with one another to the best of our ability for stable longevity purposes. This is supposed to be fun, exploratory, and non-threatening.

Any tips or thoughts? How do you keep the primary relationship secure strong and safe?