Brief Answer:
No worries

Detailed Answer:
Thank you for asking

I read your question and i understand your concern. Orgasm is a multi system involving physiological response and slight anal tightening or feel like passing flatus is not abnormal and part of the bodys coping up with the parasympathetic demands of the occasion. Its also due to perineal muscles stiffening and contractions during the act. So dont be bothered about it. Just make sure you do coitus on an empty rectum like in the morning after voiding etc. It will help reduce the feeling. Rest assured its no big deal and should not be a concern.

I hope it helps. Take good care of yourself and dont forget to close the discussion please.

Regards
Khan

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