26 M with a gf but can't get over my obsession...

My girlfriend and I have been living together for a while now. But our sex life has been dry. So I turned to... Other places. And have fallen down this pipeline. I'm OBSESSED with cocks. The idea of sucking a man off. Lubing him up before he fucks me into submission. I need it so bad. I've never been more horny than when I'm imagining being bred. Can anyone help?