I [26m] have been in a relationship with my primary [26F] girlfriend for 4 years now. Our second girl [24F], who just came into our relationship officially, has been a good friend and off and on FWB for the past 2 years. We met at my work and since my girlfriend and her hit it off we all got closer. After pretty much being together for the past 1 year we decided to make it official.
At my work about 2 years ago, I was assigned to sit next to my new gf, Jen. We become great coworkers first. She was someone great to vent to and could depend on for actual work. A few months went on and I invited her to a party my gf, Viv, and I were put on to help make friends since she was new to the area. Viv and her hit it off well and we all had a great night chatting and hanging out. My gf is bi and thought Jen was very cute, fun and said we should do more stuff with her.