If you swallow your own semen, then no, you can't get anything new. It's quite safe. It's fairly safe, too, to swallow someone else's semen.
No. When you swallow the semen, it goes to stomach and digested. Sputum comes from your lungs.
Some gay men may choose to swallow semen after oral sex, while others may spit it out or use a tissue or cloth to clean up. It ultimately depends on personal preference and comfort level. Communication with your partner about boundaries and preferences is important.
After all there is no harm in swallowing your partners semen.
no good mon
yes
The same as anything else you digest
if you want
you can swallow the semen. yes, some people do it because it is a "turn on".
Clearly, yes.
no
No it won't do anything, but why would you?