The first question is:
.Would she have sex with another guy if she knew it was your fantasy? The best way to find this truth out is to get her ******* or at least tipsy, have sex with her, and then tell her your fantasy to share her and ask her would she take another man's big dick for you if she knew it would really turn you on? Her answer while ******* will be a clear indication of what her answer would be sober!
Finding bulls is easy. Use a swinger site like adultfriendfinder.com or SLS.com which a swing lifestyle sites. B2W is not an official swinger site even though alot of swing lifestyle people are on here! You can also use a swingers add site like doublelist.com or reddit swingers.