Is it possible for a person giving a man head to blow air into the penis at the point of ejaculation producing back pressure and causing the testicles to blow up like a balloon?
Is it possible for a person giving a man head to blow air into the penis at the point of ejaculation producing back pressure and causing the testicles to blow up like a balloon?
Based on this strange series of questions, I think what you need to do is play the Sonic Inflation series on Newgrounds (three part series, pretty fascinating stuff actually.)
But no, your lungs put at about 300 Pascals of pressure, which is not enough to inflate something in the human body which not meant to be inflated. (You can cause problems by blowing air up things though.)
Cheers, I guess I’ll have to try a different approach then.