Jim and Brian are buddies who shared accommodation when they attended the University of Texas. Later on they buy a house together. Jim is aware of Brian's upbringing and high moral standards and this is reinforced when Brian's younger sister Ruth moves in with them. Brian isn't convinced she is mature enough to live in a dorm when she studies at UT, and he wants to keep a brotherly eye on her. It isn't long before Jim witnesses Brian spanking Ruth. Jim finds this a huge turn on and later spanks his girlfriend Vicky following an argument between her and Ruth which results in Brian giving Ruth a severe paddling. Jim becomes more and more attracted to Ruth and is delighted to be involved in Ruth's twentieth birthday celebrations, especially the private, family only, birthday spanking!

When money goes missing from Jim's wallet, Ruth is the culprit, and Brian is forced to deal with her again. When Vicky gets a job in another state, Jim starts a new relationship with Ruth and they begin dating. It seems that fun play spankings are very much on the agenda - but things change when Ruth gets herself into trouble with the police. Brian is away, so the task of administering a punishment padding falls to Jim. Ruth fully accepts his discipline as a vital part of their relationship. As for Jim - he is more than happy to take over the role of disciplinarian from Brian...