Recently bisexual...

I am officially bisexual as of last weekend. I have never had any interest in guys, but I am embarrassed to admit I did enjoy it and will be doing it again.
Two guys from work, Tim and Brian, invited me to a card game at their place last Saturday night. I knew them from work and we had went out a few times for drinks after a long day. The game started out with five guys and eventually dwindled down to just me, Tim and Brian. We ran out of beer and I volunteered to make run. I was only gone about 20 minutes, but when I walked back in the card table was empty and no one answered my shouts. I walked into the living room and got a surprise. Tim was sitting on the couch naked and Brian was also naked, between Tim's legs sucking his **! I froze and didn't know what to say. Tim broke the ice and said "good, hoped you wouldn't freak out". Brian never looked up he just kept sucking. Tim calmly asked me to sit down. As I sat in a nearby chair and watched Tim explained that they had been bi since high school. For the last year I had been so jealous of both of them, they had bagged several hot girls in the office. From my angle I had a good view. Tim definitely had nothing to be ashamed of. I would spot him at a thick 6-9 inches. Brian was on par with me at a 5-6 average package. As Tim kept explaining their relationship he grabbed Brian's head and began grunting and thrusting his hips. He obviously unloaded in Brian's mouth and Brian stayed down and swallowed every drop. When Brian finally raised up he crawled across the floor to me. He began rubbing my ** as Tim encouraged me to "take my turn". I finally pulled down my jeans and Brian gave me a great **.
Tim was clearly the alpha and Brian the sub. After Brian serviced me Tim put him face down on the couch and ** him in the **. After Tim finished I took my turn. Brian was pretty loose after Tim's large **, but still I found out boy ** is really good.
As we took a breather the tables turned. Tim and Brian turned their attention to me. Tim was very understanding in that he knew I was not going to be able to take his large ** as a backdoor virgin. I would have to work up to that. But i did lose my backdoor seal to Brian. It hurt a little at first but once he worked inside me it felt really good.
We have planned to hook up again this weekend. I might even try Tim...