All the theories about what Taliesin might be are all very interesting (in many ways) and I've really been been wanting to explore the one where he's a Great Old One.
Subservience +
Kneeling +
Ownership/possessiveness +++
Praise +++
Reader insert ++++
Bondage ++++
Punishments ++++
Tentacles ++++
Bathroom stuff -----------
Non respect of safeword -----------