She's Medusa, so all snake eye powers are go. While I'm not interested in actual turn-to-stone petrification, magical paralysis or even hypnosis are definitely options to play with. Useable for non/dubcon, or consensual (nothing like, too serious if it's noncon)(scenarios where she's gets nonconned back very welcome).

She's going to be some level of tsundere, but this is taking it to the extreme, in the sense that she'll deny it but it's going to be outrageously obvious that she does, in fact, want to have sex. This could be anything from her body being super in heat and horny and she's all but begging for it while denying it, her making ridiculous excuses even as she pushes her partner down, or finding the flimsiest reasons to be "forced" to service them, or a situation where she says she doesn't want it and even explicitly claims she's being raped while literally everything but her words is saying the opposite.

Medusa with a (pair of) dick(s). Can be just transgirl Medusa, futa, futa with two cocks, or futa with two scaly snake cocks out of her snussy. Size negotiable. Also options for Lamia-style Medusa, with or without snicks (snake dicks).

It's not like Medusa especially likes doing things with her best friends or anything, but I guess you could get her in a 3some/moresome, either with your characters, or playing her with Satyr (see above account) and/or Athena (no account, but see image)