Help finding college guys vs girls tickling story??

Hi looking for a story that takes place between a group of college guys and college girls. They make a bet that the one guy can get tickled and withstand it without giving up or laughing I believe while several girls try to tickle him. I believe the guys win in the end and since they won the bet they get to tickle the girls. Its a really good resistance story and I'd love to find it. Thanks. Its multiple F tickling one M.