My husband (Jack 30,m) and I try to keep our sex life interesting by switching dom/sub roles. We like to tease and pleasure each other. We had previously had an MMF threesome with one of his friends from work (Kyle 24m) and I enjoyed it. I told Jack that I was turned on by his friend and he seemed to not mind. We discussed him being a cuckold where I would be with just his friend as he would watch wearing his cage. A few weeks went by and I kept thinking about his friend and how I wanted him to come over again. Jack knew my intentions with his friend but was reluctant to the idea so I punished him and had him wear his chastity cage and denied him for 3 nights (he was only allowed to pleasure me). He begged me to unlock him and I told him he would keep it on unless he agreed to be cuckolded. He agreed and I texted his friend Kyle (with whom we had a threesome) and asked him if he would come over that night and he showed up a short time later. Kyle had an idea of what would transpire but when I opened the door wearing black lingerie he was surprised. I invited him in and he asked where Jack was and he was waiting patiently in the bedroom. I helped Kyle to get more comfortable and I went down on him in the living room before leading him into the bedroom. Kyle laid me on the bed and orally pleasured me as I looked at Jack and I let him come over and hold my hand as Kyle began to thrust into me. Jack watched as Kyle thrust into me as I orgasmed. I loved how he manhandled me and flipped me over to do it in different positions. I rode Kyle as Jack sat next to us on the bed feeling my breasts. I loved the feeling of Kyle's long thickness deep inside me as I rode him. He made me so wet. I finally took off the necklace with the key on it and tossed it to Jack so he could unlock himself. Once Kyle finished inside me Jack slid inside me and finished a few thrusts later. All I could do was just lay there on the bed as Kyle kissed me and I thanked him for coming over as he was getting dressed and left. Jack cuddled me and told me he liked watching me with Kyle. I asked him if it was wrong that I would want to have him come over again. He told me he didn't mind. I don't regret it because every girl knows that some guys are better in bed than others. I think after 7 years of being married to Jack, I wanted to be with a different guy that hit my spots. Since we are open with each other our sex life has been great. So am I a slut for wanting his friend to come over more often?