It's Complicated

Aiden's sister Vivian will be coming to live with him. There was a fire in her condo. Everything was lost. Growing up she was a surrogate mother and was very picky about everything. It is going to complicate his life. He will have to hide all toys and restraints his girlfriend Clara likes to use. The dresses and wigs will have to be put away that always turns on Clara when he wears them. Then there is the relationship with Lucas who they both enjoy.
It doesn't take long before Vivian becomes another slut Clara can enjoy. All the characters are over the age of 18, there is no sex between family members, and all sexual acts are consensual.