Swimming was a required class for all incoming freshmen at the university I attended in 1972. The class was all guys with the coach telling us we would either wear a jockstrap or speedo because the university could not afford the water it would lose with sissy swimming suits.
Being a PE major, I was well familiar with jockstraps but I was not going to swim in one, especially in front of other guys. I had no car and any shopping center was miles away. The bookstore had speedos. When I stopped in, I was assisted by a friendly female student clerk. I told her what I needed and she said 'guess you're not going to do class in your jockstrap'. Three color choices were available and I asked to see all three. Feeling the material, her being friendly and the thought of what she said was causing me to be aroused.
I selected a blue suit and hurried out the door to my dorm room to try it on. This was my first time in a speedo and wow-I immediately had to beat off being careful not to spray my new suit.
A day or two later in history class, the clerk said hi and asked how my speedo fit. During class she passed a note to me that asked if I was able to control myself in the suit and that she would see me soon. After class she quickly disappeared.
Swim class was at 7:30am so I could take care of my morning wood, put on my speedo and head to class. One day after class, there she was with two other girls hanging around in a corner of the pool area. She said come on over and I did. I felt strange talking to three girls in only my speedo-I did not even have a towel with me. The girls stood in front of me with my clerk friend in the middle. She reached over and hooked her fingers in the front of my speedo and untied the strings. I had an immediate erection that was pointing up. With the back side of her hand she rubbed me until I quickly had an explosion. All three giggled and left saying they would see me later.
During history class that day, I did not know what to do-she kept looking at me and finally sent a note that said I just wanted to make sure the suit I sold you fitted OK. There are several episodes of what happened in my speedo to follow.