I masturbated while watching my girlfriend and the neighbor scissor each other's pussy

I walked in on my girlfriend and the neighbor scissoring each other’s pussy. Watching my girlfriend scissor each other's pussy gave me a boner, so I took out my cock and jerked it off while watching them. When my girlfriend noticed I was watching them, she dragged me to a corner and made me fuck her doggystyle after she sucked my cock. My girlfriend and I also have a bisexual threesome with the neighbor.