Yurito is doing all that to absorb energy so his breast milk won’t taste bad to Toshimaru once the baby decides to actually eat. Thus they show Yurito glancing at Toshi before Yurito fully agrees to eye licking (＞人＜;)
I hope Dohwa’s phone didn’t actually get damaged. That’d be another thing for him to stress about since he’s tight on money and things are already not looking up for him :/