Firstly, disabled persons may need physical assistance or practical equipment to enable them to participate in sexual activity.
Why 'Sex With a Difference'?
Secondly, sexual orientation comes in different forms, as does sexual expression. It IS possible to be disabled and be lesbian, gay, bisexual, transgender (LGBT). It is also possible as a disabled person to have fetishes, and interests in bondage, domination, sado-masochism (BDSM), swinging and group sex. Other forms of sex are also available!!!
As Lorraine comments 'We are not all heterosexual able bodied people that have sex in the Missionary Position'. Some of us may have other sexual orientations, or preferences.