Hmmm, I took a screenshot with a decent position of MC and penis to measure
View attachment 1360856
Blown up to 800% on my screen to find decent measuring points and using Gimp's length tool (mwahaha, because we're measuring the length of his tool, get it?), MC is about 196 pixels in height, his penis (not quite erect, not quite flaccid) 17 pixels. Let's give MC 1.80m (5' 11'') in height - quite average, maybe a bit smaller than other guys - then his penis would clock in at 15.6 cm (6.14 inches). It would be proportionally longer if MC would be higher. That's roughly 2.5cm/1 inch more than the average erect penis is, even while MC's isn't all erect here and slightly pointing forward, thus seeming shorter, there's easily room for another inch or more. Of course with this rough and ready approach there's not a very high accuracy.
I mean I don't know you personally and how well you're endowed, but it objectively isn't "tiny" compared to normal people, just to porn movies and what you see in the games on this forum. In the real world, it's well above average.
(Did I spend too much time on this? Yes, I did, why did you ask again?)