ah...
now, then, dick, a little sex education for you.
your penis has to be NOT on your head to have sex, and sex is how babies are made. perhaps that's where you're going wrong, dear. usually, if your penis is on your head, it just means you are what is commonly known as a D-I-C-K-H-E-A-D. which means a dickhead.
so, to re-cap, for the hard of thinking, mcj's penis is in his trousers (occasionally), and yours in on your head. this means mcj is capable of having sex and, thereby, fathering a child, whilst you are a dickhead.
get it? got it? good.