They have groups in Arkansas. I used to be in one down here in Ft Smith that folded. There is a group on line called Couples for Play (C4P) that hosts events in OK, MO and Eureka Springs. I don't know if your client has ever participated in a swinging group before but it's not open sex. Everybody has the right to say no. Most of the events around here are off premises which means people met at a party then the 'swinging' takes pplace in hotel rooms or private homes. If the male member of the party want's to partake of the pleasures of another woman, with her permission of course, the female member is expected to participate also with other male partners. Gratis.
They can be fun but if you think the drama here is bad...LOL
The url is
www.c4p.com