Topics: Spinal cord injury - Wikipedia
Usually high level quadriplegics cannot go without a catheter for long. Care should be taken not to pull on a catheter during sex but don’t let it spoil enjoyment. If either wheelchair sex partner (or soloist) has major concern about a catheter for medical or aesthetic reasons tape it and any tubing to the body prior to love making. Be aware tubing pressed hard against skin can cause blisters. A sleeve of soft material slipped over the catheter and or tubing may avoid blistering.
Complete injuries involving S2 to S4 affect the nerves responsible for two main chambers (corpora cavernosa) of the penis which fill with blood to create an erection, damage at and above this level makes reflex (physically stimulated) erections totally unachievable for most. If a sphincterectomy has been performed reflex and psychogenic erections are rarely possible. Difficulties with erections may eventually be experienced by nearly half of men with Multiple Sclerosis (MS) caused by lesions of the thoracic spine and autonomic nerves.
The most sensitive area of the penis is the fraenum (underside of penis head). A vibrator applied to the fraenum can not only induce erection but orgasm, ejaculation. For a woman laying face up the erogenous zone is two to three inches inside the vagina and upward, called the G-spot. During wheelchair sex a womans G-spot might be more easily reached by sliding her hips up to the front edge of the wheelchair seat.