Can you hypothetically inject protein into your muscle to stimulate

Pls don't inject yourself with semen

>>42684264
I already injected your mum with semen

>>42684252
It's called eating

>>42684371
I already ate your mums pussy

Got me thinking, could you inject HGH into your dick to make it grow without affecting the rest of your body?

>>42684968
no

>>42684996
Why not?

>>42685010
There's this thing called circulation

>>42684968
>>42685083
Igf tends to be injected in specific regions for spot growth.

>>42684252

Why not just inject testosterone?

>>42685095
Yeah, muscle. The penis isn't a muscle.

A post on here claims topical test increases size, and apparently a study on 5 3-17YOs confirms.

http://sci-hub.io/10.1016/S0022-5347(17)57584-9

..Although it states that pre-pubescence shows the greatest response, with the 17 having reduced effect (27%).. but the whole study is on micropenises; and it's a mystery, the plausibility of it on normal sized penises.

File: Screenshot_195.jpg (89KB, 351x542px) Image search: [Google]

89KB, 351x542px

>>42685394

>>42685394
https://www.thundersplace.org/male-supplements/applying-androgel-directly-to-genital-area.html

File: 1496372908719.jpg (6KB, 275x183px) Image search: [Google]

6KB, 275x183px

>>42685138
>the penis isn't a muscle

>>42685639

literally just type shit into google before you waste bandwidth uploading your mouthbreather comments my bro