At first, thanks for your reply. And I must apologize, I did not make a difference between "ya" and "yeah", the second one is common in game and in my mind those two words were merged into one.
But, there's still "ya". If you want proof, i have it. Citates from 17th episode.
And so on and so on, you can follow other parts of the episode yourself, maybe search failed 'cause for search engine "Ya," or "ya!" is not equal to "Ya".
Considering dick size I won't argue, just look at blowjob from Jenna scene, her face near dick allows watcher to measure the dick's size (and its like hobbit near Gandalf from LOTR comparison).