Like all my stories this is based on an actual experience. Names have been changed, etc.
In the 1970's we lived in a small community in Florida. Our neighborhood was so safe that we never locked a door. In fact, when we sold the house ten years later we could not locate a key to pass on to the new owners.
One of our neighbors was a nineteen year old girl named Julie who we only saw when she snuck out of the house after her shower and jumped into our bed between us. She said she was just there to talk. She was always dressed in a shorty nightgown and panties.
Julie would lie there between us telling about her day and asking about ours. We did not know what her objective might be. I didn't know if she was interested in my wife or me, or both of us. I was horny and she was delaying my loving time, so I tested her. Over time I found that I could stroke the hair on her pussy through the leg of her underwear or stroke her breast with no noticeable response on her part. She accepted, but did not encourage my attentions. The whole time I played around with her she kept her attention focused on my wife.
One Saturday night after I had stroked her breast and pussy, I took Julie's hand in mine and hand over hand we stroked my wife's breast.
Julie knew that we had taken a major step and I interpreted her reaction as a combination of relief and trepidation as she did not know how my wife would react. I removed my hand from Julie's and she continued gently stroking the breast.
My wife also saw Julie's confusion and moved to kiss Julie gently on the mouth. Julie's mouth opened and she touched her lips with her tongue. My wife reciprocated and soon they were sharing one of the most passionate soul kisses that I have ever witnessed. While kissing, Julie and my wife both reached out and wrapped their arms around each other. Soon they moved into a face to face, full body hug while lying on their sides. I did not want to interrupt the experience so I just sat back and watched.