Stories about fm/ff

Tara Bishop, a superheroine, wakes up bound and tortured by Morgana Strazio while her sister Kara faces intense sexual devices, both struggling against their captor's dominance and threats. Tara, initially strong, gradually becomes vulnerable as she is forced to work with Strazio to save Kara from worsening torture, facing constant physical and emotional pain in a high-stakes, sexually charged environment.