One has to be aware that the best way to prevent penile breakage related injuries is to engage in sexual intercourse with a solid erection. A popping sound during sex is usually a penile de-location sound. This and similar mechanical in nature, unfortunate occurrences will induce hardening and collagen scarrings. However, there is a way to reverse the damage, given that it is not a complete breakage of the corpora cavernosa.

In order to soften fully formed scars, one would benefit from increased prostaglandins E1 E3 as well as Nitric Oxide in the adjacent tissues and blood. Note that injecting yourself with an artificial prostaglandin E1 (known as Prostaglandin E1 analog) is not advisable through the possibility of priapism and severe nervous and tissue damage.

Useful Links:
1) Supplement Support
2) Holistic Approach