First of all, thanks for your suggestions.
She is really a loud laugher even for light stimulations. But we play in my flat and I would prefer people in the flats next to mine not hear her scream and laugh too bad.
Last time we simply used a bandana as a cleave gag and I put a Metallica's lp on but wasn't enough. Really.
Sorry to hop in your thread with questions here, hope you dont mind! In your experience, has breathing been a big issue with a gag? I'm worried about suffocating somebody.