The Seniors (1978)

Four students, who hate to leave the fun times behind, are about to graduate from college. They live with an insatiable co-ed, Sylvia, who willingly beds all four. Meanwhile, a crazed professor, Dr. Sigmund Heigner, is breeding and studying the sex lives of mosquitoes in his home study. Heigner's googly assistant, Arnold Frobisher, is crazy about Sylvia. The four Seniors decide to let Arnold be "wedded" and bedded to Sylvia if he agrees to write a research grant in Professor Heigner's name. This grant guarantees continued funds for years to come, and allows them to have sex with willing, nubile coeds in the name of science. When will this project end and what will be the outcome?