Time you have mentioned are perfectly normal. Penis may not get adequate erection if you try to perform again within half hour or more. Don't make sex as exam and your partner as examiner. Better feel that you are a champion and play at your time and will.
If you have adequate, prompt and sustained erection first time, it mean you are not suffering from erectile dysfunction or impotence.
Answered2017-01-23 09:14:11
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