Only in June i had finally succes, and i've been able to cum immediately, whit my surprise

Thanx to the video who send me user chpoof (the video of the post "who is this guy?"), i've been able nearly immediately to manage, understanding the technique of that boy (mainly one arm to the right of the leg to push better...), i was making a mistake until that moment!
It' s been fantastica and so now...but i have some anxiety about problems who could come on, as infections of uretra or cystis...or something like that!
Some one can answer me?
Thanx, and meanwhile my first pics!