Riku did finally let up on the tickling, but only because he knew Sora WOULD bite him. It had happened before.
Gokudera pat Tsuna on the head. Maybe NOW he was finally seeing what Gokudera had noticed about the relationship their older brother had. This was NOT how normal best friends acted.
"You want me to start the frosting?" Riku asked while he let Sora take care of the cake part. He got out a second bowl for the frosting and the cake pans.