You can orgasm with vagina sex but he has to press down on the area of your vagina that's closest your **** cavity while he's thrusting. Also, he needs to focus on the opening of your vagina and maybe stick a finger or two down there while he's inserted and do a massage technique to your side or bottom wall while thrusting. Also, pressing a little hard on that little bridge between your **** and vagina for awhile and then releasing can give a woman a hungry sensation if done correctly. These are a few things that make me orgasm without clit stimulation. But add clit stimulation to this, a strong steady esculating pace and nipple attention and I'm in heaven.