"I found it much easier to deal with swinging couples than with “single” men. Couples often look for bisexual women to please both partners, so I could always say I tried it with a woman just the other day and realized bisexuality was not my cup of tea. These couples are sexually satisfied people at peace with themselves and the world around them, so they let you go without a hitch. Moreover, they gladly remain your friends and continue to divulge the secrets of the “trade.”"
from here
