Author's note: This is one of my first attempts at an erotic story. Positive comments and kind constructive criticism is appreciated. All characters are fictional and 18 or over.
I turned 18 right after I started my senior year in high school. I received a Cross Country and Track scholarship from a small private school. The ratio at the school was 3 girls to 1 guy. Every one had to take two PE classes as part of their core. The school had an olympic sized pool. So, the school required that everyone pass a swimming class their freshman year. I went ahead and signed up to take the swimming class my first semester. We had to wear school uniform shorts and shirts over our bathing suits on the way to class. Once at class, we would go into the locker room and remove our shorts and shirts. The girls had to wear a school uniform one piece bathing suit. The fabric was thin from use over the years. The cool air and water made their hardened nipples easily visible. The back side covered just a little over half of their butts. The tightness of the bottom of the suit often revealed a slight camel toe. The guys had to wear speedos bottoms. The thin, tight fabric revealed a slight bump in the front. The bump enlarged when standing outside the pool and viewing the ladies in their suits. The tightness helped to contain our hardening and the cold water helped to shrink it.
Many of the girls were very attractive. The suits sometimes barely contained the large breasts or bottoms of some of the girls. Some girls let the back of the suits get into the crack of their butt to where it looked like they were wearing a thong. Others made sure that we had a good view of the side of their large breasts. The professor also would wear a one piece when instructing the class. She was young and fit but she had larger breasts than all of the girls and an awesome ass. She was not too strict and often incorporated games and pool sports as part of the class.
At the end of the final class, she invited the class to her house for a pool party. She said that the girls could wear bikinis if they wanted. The girls said that they would wear their bikinis if the guys would wear their speedos. The guys all agreed. That Saturday, we showed up at 11 to swim and then eat lunch at 12. Watching the girls remove their shorts and shirts to reveal their bikinis was like watching the beginning of a strip show. Then the professor walked out in a bright red bikini! The triangles barely covered her breasts and the bottom was a thong!! The speedos strained to contain or hardening members. As the girls complimented her on her suit, the guy just stood in awe. The smartest guy in our group jumped into the pool to hide his growing excitement and the rest of us followed. The girls joined soon after for a game of water polo. The girls won due to the professor being their goalie and their overwhelming number. We had some races then headed inside to eat.