Not with a SP but when I was in my late 20's I dated a female cop and she was a very hot and sexy nympho. For July first we had decided to go to Ottawa and see the fireworks and on our way there in the middle of the afternoon she suggested that we rent a motel room for the night. We did and we started going at it, 4 times in a row until we ordered a pizza and drinks and continued for another 3 round until we both fell asleep and never saw the fireworks.
With a Sp back in 2019, I had booked with a travelling lady and on the morning of she text me and wanted to cancel, after telling her that her husband was with her. She then texted me back and asked if I wanted to try a cuckold scene with her husband watching. Being a bit shy with another man watching but curious to try I accepted. When I showed up at her hotel she told me which floor to go to and met me at the elevator. She was wearing thigh high socks with a schoolgirl skirt and a white shirt, she had pigtail hairstyle and looked young, that's because she was only 5'1" but she was in her late 20's. When we walked back in the room her husband was much older and he had his hands tied to a chair and with a scarf over his mouth so that he couldn't speak. She started by going down on her knees and performed fellatio and telling her husband that he was useless and that I had a much bigger cock then him and that she was happy to blow a real young man. Her technique was amazing and in no time I blew my first load without even removing my clothes, only pants to my knees.
I took a quick shower and came back and I thought that was it and started to get dressed again...she then said to stop and sit on the couch, she proceeded to give me another BBBJ while looking at her husband and told me to humiliate him by telling him how good she was...that was a bit hard for me to do since I'm a nice guy and felt a bit out of place to do things like that. Guess what? It made me cum harder then the first time.
Back in the shower and figured that was it...NO WAY! With both time of me CIM she was leaning over her husband removed the scarf and started kissing him and wanted me to do her from behind so I obliged she slipped on a condom and this time it took me a lot longer and I was going over the 1 hour time scheduled but didn't care she was small, fit, firm tight and to me it was like he wasn't there anymore. While we changed position she asked if I could cum in his mouth....that's where I drew the line and said "NO" to that. When I was ready to explode she removed the rubber and took it all in without swallowing she turned to her husband and gave him all of my nut butter.
He told me after that he was a manager for music and movie stars and that he didn't need the money for himself or for her and that I didn't have to pay. After a week I got emails from them wanting me to go to Paris with them and they wanted to use me as a "pet in the bedroom", I declined the offer because of my marriage and job.