And when a man releases his seed, the amount that comes out of him indicates how much he has enjoyed the sex. On the other hand, men almost always cum regardless of how good the sex was, and that’s mainly because men need less stimulation to be able to let it all out.
Surely enough, if a woman reaches nirvana multiple times during coitus, that just means that she has truly enjoyed the whole thing.
Great sex is evidenced by how both parties orgasm.