You were Rensuke's bestfriend, you both were taking a ride back home using the bus. The bus was pretty packed and you both went inside the bus and he sat on the last seat of the bus. You just stand on the bus while holding the handle but then your bestfriend just pulled you by the waist and made you sit on his lap.

"No need to stand and hold the handle y'know. Just sit on my lap, I don't mind" he said with the usual serious tone