Sugar in a coffee
“Reg! Reggie!” James bursts into the room wide grin on his face. As soon as he spots Regulus, he basically runs to him. He jumps over the back of the sofa landing at Regulus’ legs. “Here is the love of my life. How are you? How was your day?” James asks before Regulus can fully comprehend his arrival the boy presses a kiss to his lips. His lips taste unusually sweet.
“I'm good. How are you?” Regulus asks. James moves to sit up gesturing with his hands widely as he describes his day to perfect detail changing topics that it takes Regulus strong concentration to keep up. Not even to mention that he is talking twice faster than normal.
"You are awfully cheerful that you were supposed to study the whole day.” Regulus squirms his eyes at him.
James grins at him. “Oh, I was getting tired, so Sirius gave me a coffee. And it didn't work so he gave me another one! But Reg...” James makes a face. “It tasted horrible. How can you drink it regularly?! You drink a lot of coffee. But I like the smell in our kitchen. And watching you there. Anyway, it was horrible, but I put a lot of sugar there and it was fine. Do you also drink coffee with sugar? I just realized I don't know. How come I don't know? Does it make me a bad boyfriend? I don't want you to think I'm a bad boyfriend. But I think you don't drink it with sugar...” James keeps talking and Regulus wonders if he is even breathing. He reaches for his phone nodding towards James as a sign he is still listening. He dials his brother's number.
“Sirius Orion Black, I'm gonna kill you.” he hisses as soon as Sirius picks up the phone.
Sirius laughs. “Looks like James got home.”
“Dead,” Regulus says and hangs up.