[he's already been awkwardly bothering your girlfriend for info about other fun physical things humans do together, so. yeah, he knows about the oral sex.]
Thank me?
[for a moment, he looks more perplexed than anything about why that would be necessary. but then, yako had kinda been mad at him, so maybe it was expected for him to have not helped?]
That is not necessary. I would do anything for Yako.
http://tinybro.tumblr.com/post/48901481066/0ci0-dont-make-that-face-well-meet-again
Thank me?
[for a moment, he looks more perplexed than anything about why that would be necessary. but then, yako had kinda been mad at him, so maybe it was expected for him to have not helped?]
That is not necessary. I would do anything for Yako.