Firecracker by Jaye Valentine

Isaac Lang is deeply in love with his live-in life-partner, Baltimore City police officer Jeff Clark, and has a serious kink for risky role-play sex with strangers. Jeff finds Isaac's wild ways incredibly hot, and he's more than willing to help facilitate Isaac's lustful cravings.Jeff trusts Isaac to be emotionally faithful despite the sexual experimentation, and Isaac trusts Jeff to watch his back and keep him safe from harm. Not a lifestyle everyone might aspire to or could successfully manage, but Isaac and Jeff make their quest for kink work to keep the sparks flying in their relationship.