[This is a very specific fantasy. My wife has given me permission to advertise, even though she might shake her head, smile, and roll her eyes a bit. :-) I'm not sure I genuinely expect to find another couple with whom to explore this scenario, but it can't hurt to put it out there!]

Casual, mom-next-door dominant Wife and submissive orally-skilled bi-curious husband seek similar for mutual experimentation. Ideally, an ongoing arrangement that would allow the Wives to "reward" good behavior while simultaneously outsourcing distasteful oral tasks they would rather not perform anyway. Win-win-win-win!

It's up to each Wife whether a "reward" constitutes allowing her little man to suck or to be sucked. Either way, the males do as they are told, and thank the Wife-in-charge for the privilege. Purely CFNM ("clothed female naked male"); Wives are in charge, and are not required to participate.

Devoted submissives take particular pride in pleasing their Mistresses by providing complete, thorough service, so swallowing is a reasonable expectation. But safety is paramount, so condoms must be used until the couples establish trust and show test results.

We're busy and heavily involved in the community, so these little sessions may only occur several times a year. Perhaps once a month or so, the Wives could coordinate a play-date for the hubbies. If hosting is problematic, they could just use the backseat of a vehicle, with one or both Wives chaperoning from the front seat. Perhaps, as a get-to-know-you, both Wives could ride up front while the hubbies each jack off, in one-another's presence, together in the back seat. They should start out gradually; this is a brave new frontier, after all, and nerves may affect their ability to perform, the poor dears...

Age/race/looks far less important than a healthy, solid marriage ready to cross a new threshold. Geography somewhat important, given Seattle traffic; we're a bit north of Ballard.