This could be a friend of mine. She is married but a free sprite who likes to flirt.
Her 'no penetration' rule only applies to the penis, because she told me about a female friend of hers taking her out to dinner, which ended up being in a swing club. She was thinking if she could hook up with her friend, would their friendship survive? Could she with a cigarette smoker, because she hates cigarette smoke?
Anyway, they met another couple at the bar which relieved her of the dilemma. The husband hooked up with her friend and the wife had her sight on her. The wife penetrated her with her tongue and fingers. Brought her close but kept her on the edge, scooted up, and planted her pussy in her mouth. Rode her face until she came.
She never finished telling me that part of the story, so I hope the wife did bring her off at the end.
She did tell me she hooked up with another couple. The boyfriend took her, but she just kissed and avoided his penis. The girlfriend didn't like the way they were kissing and took him away from her.
That is why I think her 'no penetration' rule just applies to the penis in her pussy.