At A Hotel

It all started when i shared a hotel room with my buddy and his girlfriend as we were away on business. There was 2 double beds and i crashed pretty early. When i woke up i could hear my buddy pounding away at his girlfriends pussy. She was trying to be quiet but kept saying how big he was. The embaressing part is i started to get hard thinking about my buddy fucking his girlfriend with his massive cock. i could hear his girlfriend say "do you think hes awake?". At that point he called out my name, i tried to pretend to still be asleep. At that point he pulled off my sheet and they seen that i had a boner except i was about a third of the size as my buddy. I continued to pretend to be asleep and they just laughed and whispered how i must be enjoying it.