Wive Swapping Yua Kuramochi Yua Kuramochi. Would you like to swap with an S1 porn actress or actor? We have dispatched Yua Kuramochi for the first release of this theme. Two married couples participated. The broken relationship between the couples is unrepairable... just take it all off and change each others' partners! Many feelings such as envy, bewilderment, excitement, mix as they swap. After they've enjoyed an unfamiliar dick and pussy, they see the good side of their partner. S1 is awaiting your swapping request!.