Most guys can't ejaculate just from anal stimulation, but it's most likely to happen if you stimulate the prostate gland, which is located between the wall of the anus and the base of the penis.
Prostate.
Nothing will happen if sperm is ejaculated into the rectum. Make sure, however, your partner doesn't have any infections or you will probably get it.
Make sure to shave down there, and clean.
if u finger hard enough it will
Don't ejaculate
your anus
First, you probably mean the rectum, which is inside the body. The anus is the opening to the rectum. But.. You can't make the rectum 'longer'. It's like asking, How can I make my finger longer? or asking, How can I make my nose grow? The rectum like the anus can be stretched in width but not lengthened. Important--- The rectum and anus can be permanently damaged. That damage can result in constipation and leaking of softer stool.
you poo it out your anus
YES
Not necessarily, though frequent sex there might make a difference.
Though it is possible to lick anything, licking someone's anus can make you very sick.
Yes, it can. Of course, not as much as the ejaculate of semen that comes next. It is often enough to make a girl pregnant.