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.
That probably wouldn't have been how Maria would have described it as she lay on the floor, nursing her injured hands. But when she got back from the hospital and realized that she couldn't take off her own panties, possibilities did start to occur to her.
Being short of cash Don accepted a babysitting job. It developed into more than he expected. Avery taught Don about the wonders of sex. Don introduced Jayden to the greatest feeling on earth. Enjoy This is from Nov. 2000