Twice Bound is a Miraculous Ladybug fanfic written by ghostlyhamburger.
Marinette wants to explore a darker side of herself, so she ends up at Miraculous, an exclusive club catering to Paris's BDSM scene. She finds more than she's bargained for as a couple of dominants take an interest in her.
Twice Bound provides examples of:
- Adaptational Mundanity: No magic jewelry or superheroes in this one. It's all about the sexual exploits of three characters from the series without any of the speculative stuff. Their hero names (Ladybug, Chat Noir and Ryuuko) are used as aliases for a BDSM-club and Tikki is its very human owner.
- Adaptational Sexuality: In-canon, both Marinette and Kagami are only ever seen holding an interest in Adrien. Here, they are both bisexual and share him as a One True Threesome.
- Coolest Club Ever: Miraculous is the name of Paris' hippest lifestyle club, it being the place where Marinette is "auctioned" out to be the sub in a sub/dom BDSM situation.
- Dominatrix: Both Kagami and Adrien are doms, both sharing Marinette as their sub.
- Girls Love Chocolate: Dark chocolate is Marinette's go-too ingredient for aftercare.
- Lemon: Being a Porn with Plot, it is very much Rated M for sexual content and is Not Safe for Work.
- Polyamory: Adrien and Kagami are a publicly known celebrity couple and they really do like each other (even though their parents pushed them together). With that said, their relationship is very open, the plot involving the both of them buying Marinette to be their sub at a faux-auction.
- Safe, Sane, and Consensual: A set of rules are in place at Miraculous to make sure that no actual abuse is happening there, with breaking of said rules meaning instant expulsion from the club and all other associated lifestyle clubs. Adrien and Kagami are doms, but they are not cruel enough to cause Marinette any real harm, easing her into the rougher stuff and supplying her with everything she needs for her aftercare.