Artist here.
 
Light on the sauce, with extra site exclusive. Yum.
 
…What? Just some casual waving around of the penises by some nondescript youths. And one adult…?
 
I guess I was in a mood that day. The bottom three are supposed to be an age-progression, and also it may be worth explaining that I often turn to alicorns when doodling. It’s like getting practice with unicorns and pegasi at the same time! This one however I took a shine to, so let’s say they’re a mutant pegasus/artificial being and the horn is pretty much vestigial. :3 -Don’t steal.-

imported from https://derpibooru.org/images/1922078