He would have gone on to agree that he was absolutely attempting to catch her but once his mouth was on hers, nothing else really mattered. Sirius smiled against her mouth and brought her in a bit closer, deepening the kiss slowly. His hand slid from her cheek to the back of her neck.

It might've started as something fun and finding Lily beautiful. The more they talked, the more they spent time together and especially during the Ball, the more Sirius realized he enjoyed those times as much as he enjoyed talking to her. Sirius found himself thinking of her more often and wanting to do things with her, show her things... share experiences with her. It was a new feeling honestly but one he didn't want to let go of.

"I was disappointed when that couple came barging into that classroom," he murmured against her mouth, his voice huskier and lower in volume. "I knew I should have locked that door."