Until Bo Yan completely let go, until his breath became unsteady and his clothes were somehow disheveled by her, this guy just sat on his leg squirming, deliberately teasing him.
After finishing the squirming, Bo Yan's voice was a bit husky: "It's getting late, why don't we..."
Xia Siyu then displayed her "claws", still sitting on his leg, twisting her waist a bit, intentionally or unintentionally brushing against him, making Bo Yan's breathing become chaotic. But she only smiled mischievously, hooked his neck with one hand, and with the other, traced his lip corner with her fingertip: "That won't do. Haven't showered yet."
She did it on purpose; this man is ticklish, and she wanted to retaliate! Her way of retaliation was to slam the brakes just as he was sprinting with great enthusiasm! Who told this rascal to bully her? In any case, he's the one who's uncomfortable in the end. That's what you get for bullying!