Secret Sex Affair

i'm straight and i work up north in the mines on a 3&1 roster but one night in camp we were drinking outside my room just me and one of my mates i work with who only got married recently but that meant nothing because i went inside to use the toilet and as a joke I told him he can join me inside if he likes and one thing lead to another, i heard my door close and I walk out to see my mate sitting back on my bed, his cock was so hard I could see it bulging out of his shorts, I knew then he wanted dick. So I locked the door and started getting naked, as soon as he seen my cock he was all over it, I made him cum and it made me so horny I wanted to fuck him so bad and then suddenly he pulled my cock out of his mouth and told me to fuck him so i did and i loved it! We fucked all that night and the next night and we secretly have done for over a year now.