Their preferences are not as big as you would expect. I'm pretty sure a solid 18,0cm is most comfortable...
Of course you may get a size queen here and there but they're about as common as actual monster cocks. Not very.
Here's the thing: You can't go around wanking and blowing your load on a daily basis if you want huge cum shots. L-arganine and other supplements do the job IF you play your part and don't drain your balls any chance you get.
Also, fucking a HOT chick helps. (Hot can be anything that get's...
Faulty vein gets filled using tiny springs or glue to block it off. Everything is done using keyhole surgery straight into your veins using a catheter. There is only one tiny cut made, the procedure is quick and you go home 2 hours later (get a taxi or lift with someone).
I had this done and...
2 rules of dick stretching club.
1) No *extended* breaks
2) Don't tell women about anything - there is no benefit in talking. Actions speak but keep your mouth SHUT
3) Never quit - persistence pays off in the long run
Dermal filler on the dick is just stupid. The best application for dermal filler is deep, against bone, usually on the face.
On something as transient in size and firmness as a dick, it's pointless and would require A LOT of product. Maybe if you had some defect where you need to fill in a...
Also just thinking here: what is the aim of this testing? Durability, effectiveness, comfort?
If it's effectiveness, you'd probably want a noob for those newbie gains...