Asexuality is when an individual lacks sexual attraction toward others. They are NOT intrinsically drawn to have sex.However they can still chose to have sex.
Asexuality like other orientations is a spectrum. The individual's relationship to sex varies.
Some are sex repulsed.
Others are indifferent. For them, sex is meh, whatever. Take it or leave it.
Some view sex as favorable and are okay with sex as an activity.
And others are sex aversive and avoid it.
Keep in mind just because someone is asexual doesn’t mean they can’t have sex. Some do. Some asexuals can experience sexual arousal. Some asexual people masturbate… some do not. If they do it doesn't affect their orientation. Like all the other orientations the expression is unique to the individual.
Someone who is asexual can lack sexual attraction to others but may still crave a romantic connection. They can still find an intimate emotional bond with someone that doesn’t involve sexual attraction.
I thought you might gain a richer understanding listening to people share their stories.
Asexuality.org is a great resource for finding out more information.