I watched a lot of sex comedies as an adolescent in the 80s and I've been trying to identify and track them down lately and one has been giving me a ton of trouble. The only scene I remember is an opening bit where the boys are driving to the beach, start following a trio of girls in a convertible and get into a flashing contest with them as they drive. I've been stumped searching the web so far, but believe I have found a GIF (input the filename onto imgur - I don't have permission to post links here) of the scene. Any help would be appreciated.
zHgUKxb.jpg
zHgUKxb.jpg