Why not both?

Sylvain ponders as he walks away, before seeing Shamir and Leonie walking by. He jots some things in the Reality Tome quickly, before proceeding to stage 2.

Rhea will not notice Sylvain or anyone else while masturbating. Leonie Pinelli and Catherine Charon will come up to the archbishops room while chatting, not noticing anything or being thought of as suspicious for being there.

Sylvain then waited for the two to arrive. "Table, Chair." He says to the Knight and student respectively.

He reclines back on Leonie and puts his feet up on Catherine as he continues to listen.