She and this guy are friends and they’ve always been pretty flirty and I never felt intimidated by it, in fact just the opposite. Eventually her and I admitted to each other that we would be interested in having sex with other people and possibly a threesome together. Initially her friend had no interest in a threesome but she was pretty set on having one.
A year or so ago, with my permission, the two of them got a hotel room and spent the night fucking each other and sending me fun snapchats. She was thrilled with the experience and I had a great time knowing how much she got off on it.
After their rendezvous nothing really happened between them, but occasionally her and I would send him snaps of us fucking or her blowing me. This past weekend the three of us were out with friends and the topic of a threesome came up. After some joking around, we decided why not and went to a nearby hotel.