pr524, i guess no one who has experienced this has seen it to respond as yet. my one brother has this, but it is assumed that is was inherent disorder.
i did a wikipedia search on it and found an interesting explanation. i won't publish a link here because there is a graphic depiction of an erect penis with peyronie's [not sexually suggestive] and if people here click such a link they may be triggered by what they see. not good

so you are welcome to go ahead an google wiki if you want, just wanted to add the trigger.
ron