Yoji looked at his sister though the glass of the door, "Oh c'mon sis its no fair you get all of Ryu"  Yoji turned around and jumped into the pool swimming out to Kairi.  "Hey Kairi what do you think we should do" He looked at her then decided she needed a dunking.  So swimming behind her he grabs her around the chest and pushed her downwards.  His hands totally groping her tits as she sinks and her body slid across his hardon.