There was such a huge relief in getting to see Remus actually smile. Sirius felt absolutely certain that Remus was a good student and that he was going to make it far, so he was definitely keen on staying close with him, knowing that they were going to need each other down the road.<br/>“I don’t doubt that for even a second,” Sirius stated, his voice one of admiration.<br/>___<br/>Sirius had no idea what time it was, but it had been a while since darkness had fallen outside the windows and yet he was still studying. His hair, normally in a tight, neat bun, was falling in messy strands around his face, having not bothered to fix the bun as it slowly tried to come undone.<br/>Several pages of notes were lying sprawled out on his desk in front of him, together with a plethora of open books, some of them held open by various objects.<br/>The late hour didn’t worry Sirius too much though, well aware that it was the weekend and that he had no reason to rise early the morning after. It meant that he could get to really dedicate himself to his work and maybe keep working on his angle for his doctorate.<br/>Now that Mulligan had trusted him to be his TA, Sirius felt that it was even more important that he showed himself as a good student.