Looks like... they'll stay stuck in boobs for a while, that's good (because BOOBS)and bad at the same time. Like, it's good for this chapter's gag but it only works once.
Harumi’s boobs are truly some of the greatest manga boobs i’ve seen in quite some time. The birthmark’s placement is so superb and they look so soft and squishy as well. I can see why Chiaki got so distracted.
With a great pair of boobs like Harumi's, it's not hard to understand that Chiaki gets distracted so badly. Even someone less boob-crazy would have trouble focusing.