He says that it happened right after we had sex and that he thinks I cheated and got some sort of std from cheating on him when I didn't. I don't see any stds with symptoms that match. He normally has very soft and smooth skin but as of yesterday it is very plastic feeling and very wrinkled. The scrotum is definitely more wrinkled than it should be and the shaft shouldn't be wrinkled at all. What in the world could do something like this!?
I read up about this as I really hate that men always blame the girls. I looked it up (using your question); not a single article mentioned STI's but dermatitis, fungus, or bacteria dominated most of them.
He needs to try out for broad jumping with a jump to conclusion like that. Even if you had an std, he wouldn't show symptoms that early, Has he taken a shower? I don't know of any disease that causes that.
Just beneath the skin of the scrotum is a layer of smooth, involuntary muscle called the dartos. It isn’t under voluntary control but contracts in response to cold, fear, and sexual stimulation. In any one of these cases, it helps (along with another muscle, the cremaster) to draw the testes up closer to the body.
In case of cold, this is one of the mechanisms for thermoregulation of the testes—keeping them warm, but not too warm. Sperm production is very temperature-sensitive.
In the case of fear, it’s helpful to remember that many mechanisms, such as this, are not unique to humans but also occur in many or most other mammals and would also have been present in our pre-human ancestors. It’s function may be more relevant, or more commonly useful, in those than in modern males. The hypothesis is that a fearful animal or person may be in a situation that’s soon going to require either running to escape or standing ground and fighting (the fight-or-flight response). In such situations, it would be better to have the testes snugged up against the body than hanging loosely in a slack scrotum.
In the case of the scrotum wrinkling in response to a lover’s touch, I don’t know what the function would be—but in that situation, who cares?
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