Caleb is relaxed and smiling as they spend several minutes simply playing that little game, sketching runes onto skin and naming them. There really is nothing more exciting than sleeping with another wizard. He has had a weakness for other sharp, curious minds all his life. That he is now bedding the very man who will expand his knowledge in an interesting and dangerous field of study is...very sexy, honestly, even if it is inconvenient. That he is able to so thoroughly please him is fast becoming a point of pride.

"Transmutation lab from noon to four," he murmurs in answer. "And I reserved a practice room for a few hours after."

He doesn't say that it's to test possibilities for the project he'll be working on for Yussa's class, but it is. The practice rooms are actually permanently fixed demiplanes, which gives students a safe place to cast spells that would be dangerous or disruptive. Naturally, they see a lot of use by evocation specialists and those taking evocation classes.