Unexpected anonymous [mmf] threesome

When i was 22 i worked at a high end hotel in Los Angeles. It was a small boutique hotel so i had a lot of jobs and one of them was room service.

One evening my boss sends down to the liquor store with a list of various bottles of booze and mixers. I didnt usually do stuff like this unless there was a particularly important guest. After buying everything i head up to the room.

I knock on the door and an older man opens the door. He was about 60 years old, but was in good shape and it was clear he worked out. His hair was white and contrasted with his tan skin. He invited me in and asked me to set the box down on the table. I put it down and turned around to head for the door. He stopped me and handed me a 20 dollar bill and asked me if i wanted to do a quick shot. Admittedly, i was a heavy drinker at the time and i agreed because i never said no.