Are both partners supposed to reach orgasm at the same time?

No, not necessarily, although when it happens it is truly magical.

An orgasm is a unique moment in lovemaking, when several instants of intense pleasure override your mind and your senses.

When both partners manage to reach orgasm at the same time, it’s about as good as sex gets.

Unfortunately, in reality that happens rarely.

The road to orgasm is quite different for men and women. Men are usually pretty quick to reach the peak of their sexual excitement, and they often don’t need much stimulation to reach orgasm. 

Women, on the other hand, need more time; their sexual excitement usually builds slowly, and they often require prolonged stimulation to reach orgasm.

Also, while penetration can easily drive a man to orgasm, many women find that type of stimulation insufficient, especially in positions that limit stimulation of the clitoris.

Given these differences, it’s pretty normal for partners engaging in a sexual act to reach orgasm at different moments. 

It is also pretty common for just one partner (often the man) to have an orgasm at all.