Sexuality extends beyond the act of having sex. Sex is, however, a part of sexuality.
The way in which you experience your sexuality in part determines your sexual identity. For most people this is not a very conscious choice, nor is it a very intentional identity. They are usually referred to as being 'straight'. But people who experience another expression of their sexuality are often keenly aware of their sexual identity. Some new lables are used to find a labble suiting yourself. Part of those are further written about in the LGBTIQI-section. Not everyone feels well with any lable and that's fine. I might require some more advanced communication skills when you still wish to express how you experience your sexuality.