Another dick question

Aight I understand if you judge me, for real this time.

So I was on Wikipedia and looking at like rapists and stuff, and I came across the word autofellatio....it confused the shit outta me so I googled it on pornhub, and I saw a FUCKING DUDE SHOVE HIS DICK UP HIS OWN ASS.

HOW FUCKING FLEXIBLE ARE DUDE’S DICKS DAMMIT???

I’m gunna regret posting this question lmfao...