We grew up listening to our parents being loud. It wasn't until a post-high school family vacation that my sister posed the question, "Why should they have all the fun?"
Randy had to give up his weekend to supervise his sister's "sweet sixteen" birthday party. It was a tough job, keeping three teen-age girls entertained, but he managed to rise to the occasion. You'll have to read on to find out how it all happened. The story opens a little slowly, but not quite slow enough to warrant that tag. Once it gets going though, the action is "hard and fast".
A frustrated wife and mother wakes up one night to find a hand stroking her bottom. Initially, she thinks it's her husband but, after a delightful few moments, she remembers with a jolt that he's away on business. There's only one other explanation, but something makes her hesitate...
An adult brother and sister (with flashbacks to their teen years) and his two teen daughters and their life together, swinging with neighbors, until they come to realize that they are more than just brother and sister. Note there is bisexual male/male sex and some watersports.
When her wicked stepmother discovers her diaries Lisa is terrified of what will happen when her secrets are revealed to her father. But her father's reaction is not what her stepmother expected, nor what she had expected!