Let me quickly summarise our relationship. Me and my gf have been together 5 months, totally in love with eachother. Shes not on the swinging scene but has a history of cheating and a history of sleeping with her work colleagues. She joined a new office and fucked ber boss within a couple weeks. She says only twice. I recently plucked up the courage to tell her i want her to fuck someone for me. After some discussion zaying she will think about it for me she said she doesnt want to. I genuinely believe it. However, after coming home from a weekend business trip i decided to go though her dirty laundry and found some nice pussy juice stained thong. She claims its from masturbating which i know she did do because she sent photos. I hope and pray this is a lie. With my permission to sleep around surely she wont cheat on me?