Sirius had wanted to spend his time with the bike again this morning, however, he had work in the afternoon into the evening and honestly? Getting covered in engine oil again and then trying to wash all of it off and look presentable sounded like a massive pain in the arse.
So instead, he'd wandered around the house a bit and had heard a portrait shouting that sounded very suspiciously like Walburga Black. He'd found Kreacher and asked him (He didn't fancy investigating too closely himself, he'd rather not come face to face with that) but the elf had simply told him he'd have to ask master whether it was indeed Mistress' portrait... which he supposed actually told him everything he needed to know.
He'd sighed, and wandered back to the living room, sitting himself down and summoning a cake he'd bought the day before and only just remembered, eating it out of boredom. He'd not even thought of his next move when Regulus wandered in. "I wasn't even thinking of it, but if I was is there anything you're not overly attached to?" he asked. "No, well. Yes, sort of. I was wandering the house a bit. Getting my bearings, you know. Is that mother's portrait I heard? Kreacher wouldn't answer a straight question." he asked, wondering why he'd blurted it right out like that. "Anyway." he said, immediately deciding that deflecting was a good plan. "What finds you in the living room at this time of day? Shouldn't you be with lover boy? Or is he training?"