Cervix
I believe that would be the cervix.
It is the vagina.
mast cells
4 Cells are produced by a reproductive cell during meiosis
To show of his wingspan to the ladies .
during puberty
Get in there with them
It doesn't actually grow, it stretches to accompdate the blood that's inside it. It stretches due to the up and down motion during sex or masturbation
The best stretches to perform are the hand to toe stretches, leg curls, and moderate hyper extension or the ankles/knees. This will loosen up the muscles, and is critical to do thus you will not injure them during your exercise routines.
They are the testes and penis.
ovum is produced by female reproductive system but sperm is produced by male reproductive system during sexual reproduction.
yes. The skin stretches and the ink stretches with it. After pregnancy the tattoo will apear distorted. Don't freak out though, many tattoo artists specialize in cover ups and you can have a distorted tattoo fixed up, or covered up entierly.