I'm an older man in my early 60's.
When my wife was 25 and I was 30 and we were dating,My wife presented herself when we met as a "good little girl" who was divorced with a baby. I believed her to be sexually inexperienced in things like swinging.
I told her I enjoyed swinging with my X wife and I wasn't going to stop, so if she didn't want that lifestyle she should look elsewhere for a relationship. She went along to her first private swingers house party where I held her legs open and watched as another guy fucked my girlfriend, wearing a rubber.
She didn't take birth control and I wanted to watch the guy cum inside my pretty little girlfriend, so I began seeking out couples where the guy had a vasectomy. It was an improvement, but we were swinging with couples and I had little interest in the other woman, preferring to watch my girlfriend get fucked. Along the way I learned my wife had a serious risk fetish and wanted to feel the guy cum inside her, dispite the risk of pregnancy, to the point where she'd refuse to play if he had to wear a rubber, and I discovered my love of photographing or video taping her with her partners. Then she had a partial hysterectomy and we both relaxed because for me the threat of pregnancy was gone while for her it remained since it was only a partial hysterectomy.
Over the years she began resisting swinging because she seemed to always get partnered with a white guy with a smaller dick than my own 7". I suggested I find a black guy to join us but she refused. I knew she wasn't a racist but she continued to refuse, as I was jerking off to interracial porn secretly on my computer.
One day I suggested we find a local, single guy to join us as a regular threesome and she readily agreed she'd like that, so I found a guy on Craigslist and we saw his cock pictures. What I hadn't counted on was him being of Hispanic background.
When he arrived she was cold as a fish and I didn't think it would work out. She sat on another couch and was barely talking. I went to the kitchen with the intent of fetching a new beer and leaving them alone for a little while, and when I returned she was on the couch with him and her face in his lap sucking his cock.
He became her regular "bull", but she considered him her "boyfriend". He was allowed full access to my wife's body for pleasure any time they agreed and there were basically no restrictions. He fucked her on our marriage bed, after family parties at my house, while I was away and she began taking pussy pictures to send to him during the work day.
One day as she was on top of him fucking him reverse cowboy I was smoking a bowl with her while I fondled his balls and her clit. I said to him that he was, "the first non Lilly white guy she'd ever fucked", and she blurted out, "NO HE"S NOT".
I was taken aback and demanded an explanation, but she wouldn't give me one. She told me she wanted a divorce, which caught me totally unaware and we fought bitterly over her 20 year lie that she wouldn't confess to.
Finally one night she told me the truth.
She had lost her virginity to the married black man living on the floor above her mothers apartment. He'd taken her to a concert and on the way home had fucked her twice inside an abandoned building. He came inside her, though no pregnancy resulted. She said she told her friend who responded with she was crazy.
The following week she and her friend were at the guys apartment while his wife was out. He'd found a friend for my wife's friend and both white girls proceeded to get fucked by BBC. Again he came inside her and instead of being alarmed she was turned on by it.
After that it became a regular thing for her. She skipped school and skipped her part time job, her mom never noticed because she was an alcoholic who either wasn't home, or was dead *******. My wife even told me she fucked her (first) bull on her mothers bed while her mom was in a ******* and alcohol induced stupor on the living room couch.
She'd lied for all those years because she thought I was a racist and wanted to trap her into a confession that somehow would be used against her. You must remember we were both children of the 60's and 70's and things were different. She confessed that for 6 years he shared her with his friends, assisted her in obtaining an IUD *******, had a pregnancy that terminated in a miscarriage early on and much more.
My "inexperienced" wife was actually a slut for black cock.
So I advertised for a local, single, well hung black bull who wanted to use my wife's little pink pussy as much as he wanted with no restrictions.
I saw the change in her from the first. She met him in a parking lot where he towered over her. She rode home in his car, sucking his cock along the way. At home she paraded out in stockings, a bra and nothing else and showed off her freshly waxed pussy standing in front of him on the couch. She dug into his shorts and extracted that big black cock like she was a starving woman and tried to mount him before he could even get his shorts off.
He fucked her for hours and hours, came inside her at least 3 times that night and each time she sucked him hard again and remounted him. I had never seen her behave like that. In the end her became the first of her steady bulls. After that I no longer had to hide my true self either. I began sucking cock and even invited a bi sexual T girl to spend the night with us.
I applaud your openness and while you think her mind might not change, give it time and build up to it. Suggest you or she find someone to enjoy a threesome with you both. Don't try to push, instead use sexy dirty talk while you have sex with her or use that toy on her. Start watching some of the porn you like with her.
And in the end if it appears she'll never come around, there are plenty of fish in that ocean, as they say.