I have just spent the weekend staying with a gay friend who has an advertising agency in Hong Kong. He invited me to join him at his office on Saturday where he was running an auditioning session for a photo shoot for a range of underwear. 15 hot guys came to audition. They each wore three items from the range so my friend and the photographer could make their selection. I sat and watched, as they stripped, put on the gear and then posed for photographs. They asked two of the guys to stay back for more photographs. Watching the guys had really turned me on and I needed to blow a load so left the guys and went through the office to the bathroom planning to jack off. There I found two of the guys who hadn't made the cut nude and fucking. I pulled my cock out of my jeans and started to stroke my shaft while they fucked. They stopped fucking and started to undress me. I was leaking pre cum really badly by the time I was nude and came as soon as one of them took my cock down his throat. Then they both fucked me. Then I watched them fuck each other until they came. They dressed and left. By the time I got back to the main office the models had left and I arrived in time to see my friend cum inside the photographers arse. He pulled out and I immediately went down on the photographers fucked arse, probing deeply with my tongue as cum spewed out. The photographer then fucked us both, and came in my already totally fucked hot wet arse.