"You know sis we are stuck like this now permanently I know a perfect teamworking exercise we can do," Luke told his sister. "Why don't we go to the pool out back and go swimming?" He continued.
"I don't know I don't think my swimsuit will fit our new form and I don't think yours will fit us either," Suzie replied to Luke.
"Well until we can get a new swimsuit that will fit our new body why don't we just swim naked?" Luke said. "Besides were stuck this now for life we may as well get used to seeing each other naked." Luke continued to tell Suzie.
Suzie agreed to swim naked being that it was their only option for now. They went up to Luke's bedroom or should I say Luke and Suzie's now shared bedroom. They went and disrobed. Since they were now naked Luke's wanted to look in the mirror since he never got a chance to see what their shared body looked like. He was fascinated by how Suzie's body took half of his body and half of her body was replaced by his body and also of how their genitals were right next to each other.
They went out back to the family pool and jumped in. It took a few minutes for them to get coordinated but they were able to keep both of their heads above water. They were doing some horsing around stuff like splashing each other or doing stuff like the doggy paddle. They were having a really good time at what they were doing and it almost made them forget that they were swimming in a state undress.