I found out yesterday that I, a 22-year old female, have osteoarthritis in my back, pelvis and knees. Basically, almost any movement, and even lack of movement, is painful to me. What's worse is that my partner feels bad when I'm in pain and nearly refuses to touch me for worrying that he'd hurt me. What's even worse is that I'm always horny and need sex very often (once a day preferred, three or four times a week minimum) due to my birth control and antidepressant.

I know I can't be the only person that's arthritic and horny. How can I make sex more enjoyable for my partner and I and ease the worries of my partner? I don't want to lie to him about my pain, but I don't want to go without. How can I make sex more comfortable for me, as well as masturbation? Any other tips/tricks for dealing with arthritis would be greatly appreciated.

Thanks in advance.