Talk to Sexologist on Sexual Issue

Hi. I have a question. I have seen or heard from many people that they 2 3 attempt during sex. I want to know after my first attempt my part doesn't get hard again for second attempt like other as I heard. Need to know is it natural or does it required any treatment, even I don't feel sexual feeling after I release first time. I am quiet good during first attempt.

I hope my problem is clear and suggestion can be provided for this.