It finally happened. More info in a blog post.
The wife and I invited a guy over. We chatted, then went to the bedroom, and she started sucking our cocks... going back and forth. Then she looks up and says "want a turn?" I dropped to my knees and we proceeded to spend about 20 minutes sucking him back and forth. Eventually, she's licking him while I'm jacking him off and he cums in her mouth. I told her not to swallow, squeezed the last drop out of his cock, licked it up, then kissed her... open mouth, full tongue exploration.