In image https://e621.net/post/show/193121 does it look like the third participant there is supposed to be underaged?

I don't want to assume that the ladies haven't simply increased in size somehow, but knowing the characters aren't particularly tall & the fact that the person below is so small in comparison, has no body hair, and has such small genitals makes it look to me like they've got a young boy there.

I don't want to go tagging this post as having such content if it's not meant to, so please chime in and let me know what you think.

The best indicator for the age of a human is the proportional size of their head to the rest of their body. Kids have far larger head to body ratios than adults do. In this case the head is in line for the size of an adult.

I don't think the size of his wiener is relevant here.

NotMeNotYou said:
The best indicator for the ago of a human is the proportional size of their head to the rest of their body. Kids have far larger head to body ratios than adults do. In this case the head is in line for the size of an adult.

I don't think the size of his wiener is relevant here.

Agree, proportions just aren't child-like.