Maybe it's because when he's with Sun Yiyi, Sun Yiyi always makes Song Xiaodong suffer, or maybe it's because Sun Yiyi is so tempting that Song Xiaodong can't help acting this way towards her.
Anyway, Song Xiaodong has an obsessive compulsion to make Sun Yiyi do this thing, even going so far as to press down on her head.
"You jerk, cough cough..." Sun Yiyi quickly pushed Song Xiaodong away, coughing a few times.
Now Song Xiaodong felt somewhat embarrassed, saying, "Sorry, I got too impulsive."
"You should slow down a bit, you made me cough," Sun Yiyi glared at Song Xiaodong again, but she didn't seem repulsed.
And after saying that, she actually tried it herself.
Song Xiaodong was in ecstasy, admitting to himself that among bedfellows, there definitely wouldn't be another woman in the world more tempting than Sun Yiyi.
Using strong willpower, Song Xiaodong still refused Sun Yiyi's second request and quickly slipped out of her room.
