My sister is 29 and her husband is 36. Her husband had a paralytic attack four years ago. Since then my sister has not had sex with him. Now, he has recovered to some extent and is able to walk. However, he is still unable to satisfy my sister, sexually. My sister wants to have sex desperately. Will her husband be able to give her the same pleasure again in the near future? If not, how can my sister satisfy her sexual urges?