can a man ejaculate inside a woman and transmit her a std or disease

Sex transmitted diseases are that, sex transmitted diseases .If he has a std, just by putting his wet penis (yes penis get wet too) inside you he will transmit his disease to you. If he has none, he will transmit you no disease. What you're asking is common sense. What to schools teach kids these days?

By the way, oral sex also transmits diseases. If you suck is penis you'll get a disease if he has one