It is bad scientifically to play with my penis and ejaculate?

No, it is not bad at all to masturbate. It is actually healthy and positive.

Is that a statement or question?

You arent at all clear bro. LOL

No it isn't. Masturbation is normal, natural and healthy and you can't do it too much.

it's called masturbation and no it's not

Go right ahead! It's perfectly normal, almost everyone does it (girls of course play with other bits downstairs), and it's actually healthy, both physically and mentally.

No, normal bodily function for males is to get erect and have sex and ejaculate-- masturbation is just simply solo sex.

its better when someone else plays with it

No it's normal, natural, healthy and safe to play with your penis and ejaculate, it's called masturbation.

There is insufficient evidence to conclude that masturbation, wither by males or females, is deleterious to one's well-being. In shorter terms: no.

I wouldn't play with it scientifically,

No, it's a healthy thing and can actually prevent prostate cancer over time since you are used to the way that it feels when you are touching yourself and are more likely to notice when something changes.

That must be fun to you.