They do

Sylvain, Hilda, and Constance managed to make it to class, where Sylvain noticed Bernadetta was present. She had been able to transfer classes, it seemed.

Byleth began her lecture, and Sylvain tried his hardest not to look up his teacher's skirt. Rhea's new rule was certainly making his class more...tasteful.

Ingrid raised her hand. "Professor, I know Hilda is Sylvain's sex doll, but does she really have to be here, naked?"

Byleth nodded. "Rules are rules, Ingrid."

Ingrid huffed.

Sylvain wanted to spice class up, and he had an idea on how.

Byleth will randomly select a girl to eat out her pussy for the rest of the lecture. The student chosen will agree to Byleth's request and will fulfil it happily.