Tim and Gregg added 4/7/2015
It's cute that Gregg can still get performance anxiety, but then I suppose that doing something new can sometimes be a little daunting, and being a top is certainly something new for Gregg.
Personally though I think that Gregg is just making the whole thing up as an excuse to get to fuck Tim, and it is more of a pick up line than a genuine concern. Either way, Gregg performs just fine as a top as you will see in this episode.