If I may, I will add that, the skin around all genitals is very elastic, designed to stretch.
A male organ can more than triple in size in it normal course.
The female organ can discharge a baby!!!! If you've ever seen a baby being born, you get the idea.
If you're lining up for SRS then this is the last thing that I would suggest, you should have on your mind.
But if you wanna trade places......?