Marital Relation

"As is well known, the early Muslims regarded sexual prowess and the ability to satisfy a woman as being an essential part of manhood. The niece of A'isha, a scholarly and beautiful woman called A'isha bint Talha, once married the pious Umar ibn Ubaydillah. On their wedding night he made love to her no fewer than seven times, so that when morning came, she told him: `You are a perfect Muslim in every way, even in this!'"Reference to above paragraph, please let me know conjugal relationships are not allowed to expose of in front of even relatives. How did that thing expose of and revealed in Islamic literature? This is my basic question in this Fatwa. In addition, can husband to his parents and wife to her (married) sisters and her mother tell, I have had a lovely wedding night? Thanks for attention to my Question.