I lived in a single dorm in college while my girlfriend at the time was attending a nearby college. My girlfriend Lisa was a freshman that year, a year younger than me. She is beautiful, about 5'7" with beautiful full 36D breasts with large pink areolas and hard nipples when she was aroused, beautiful hips, and since this was the early 1980s a nice full light brown bush that matched her hair.
Lisa and I had been together for four years and for as young as we were, we were very experienced sexually. We had often discussed fantasies and one of the main fantasies we had was to have a threesome with a guy with a large cock. She was very turned on by huge cocks after seeing some porn that featured a model with a huge penis.
That day was a late spring day in a northern state, warm and bright, and after a long winter, it felt like liberation. Lisa had to travel with her college band for a jazz concert and was gone for most of Saturday. While she was gone, a friend of mine from high school and I got together and we spent the evening bar hopping the various college bars around the dorm block. We had to head back to my dorm around midnight because Lisa was going to meet me there when she got back from the concert and spend the night.
So we got back to the dorm and had another drink or two from the vodka I had in my room. Lisa got there around 12:30 am and came up to the room. Now, the fact is that Lisa had been attracted to my friend for quite some time, including making out with him once in high school which was in some ways a prelude to this night. When she got to my room my friend was lying in my bed, a bit tired from a night out drinking.