Milk & Chastity (Part Four)

Tracy's best friend, Kerrie, starts dating Tracy's boyfriend, Kevin. Though upset at this turn of events, Tracy really can't complain because Tracy's married to Evan and she has other responsibilities at home. In addition to being an adulteress, Tracy has to providing her husband with an ample supply of her breast milk and while also being the keyholder to his chastity cage. It is because of the unconventionality of their marriage that Evan and Tracy find they are being drawn closer together.
This is a 14, 000 word novella intended for adult audiences. Part four of five. Content warning: features erotic lactation, graphic sex, group sex, lesbian sex, strong language, adult nursing relationships, erotic situations not all members of the public will enjoy, enforced male chastity, and other depictions of adult sexuality. Explicit language and adult only content. Excerpt:Can I go to Kevin's tonight?" she asked me eagerly-but there was trepidation in her voice."Sure.""Um.it sort of going to be a double date."I furrowed my brow.
"You want me to go with you to Kevin's? No. Wait. What?"Tracy looked up at the ceiling as if searching for inspiration. "Um. No. It's going to be more of a trio. Me and Kevin.and Kerrie."I blinked at her and then finally got it. "Ohhh.""Yeah. He said the only way he could choose between the two of us is to compare us both at the same time."I grinned. "You know he's just using you, " I informed her.
"He's just fulfilling every guy's fantasy of banging two chicks at once."Tracy flipped her hair back from her eyes and affected a nonchalant attitude. "I know and I don't care. Do you care?" she asked. "Does the idea of your wife having a three-way excite you?"I nodded my head. "Uh-huh. If you have the key I can show you how much the idea turns me on.""Maybe later tonight, " she said.