Alright. Essentially what Makoto is describing what he'd like to do to poor Mikoto is take out his penis and start masturbating while liking her face and eating her snot before he ejaculates onto her. Huergh.
Because it's my sister who is translating and not me, and the fact that I can understand this page through a summary online, this page itself may not exactly be the kind that I want to ask her to translate, even though the content of series gets more extreme as it goes on.
Therefore, anyone willing to pitch in would be appreciated. Cheers. Otherwise, enjoy more of the strangeness that is IyaKimi.