Bradley Walsh: Egypt’s Cosmic...
Film, Media & TV2 mins ago
No best answer has yet been selected by gyewiss. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Another idea given there is the one you list yourself - the need to retain glandular secretions which act as aphrodisiacs.
Thirdly, there is even a vague hint that it might 'cushion' the area during intercourse.