All SSRIs have some negative effect on sex, whether it's loss of libido or anorgasmia or reduced sensitivity. Different ones will affect people in slighty different ways but they all essentially do the same thing.
Also have fun when you're ready to quit... Prozac has quite a long half-life so it's one of the easier ones to taper, but I hear it's still quite unpleasant. I stopped taking Zoloft without any tapering (I knew better, but didn't care, I just wanted to be off those evil pills that made me act like a depersonalised, asexual zombie) and felt awful for ages (24/7 headaches, absence seizures, depression, short term memory problems, concentration problems, etcetera).
Not saying that you shouldn't take them if they really benefit you, but just warning you that they're not the safest drugs around. I know this post makes me look like a hypocrite after I defended opioids in another thread, I'm just speaking from experience, and while I've had nothing but positive experiences with those (they kill pain, and do a good job of it, and when used responsibly for short periods of time aren't nearly as addictive as people would have you believe), I've had nothing but negative ones with SSRIs (Zoloft made me paranoid, depersonalised, nauseous, manic and at times, like a zombie).
Anyway the short answer to your question is: yes, Prozac will likely have similar effects as Luvox, but then again it might not. Try it out for a while. Also, Prozac worked straight away for you because it does almost exactly the same thing as Luvox and in simple terms, your brain is already accustomed to that effect (downregulation and frying of receptors, etcetera).
Personally I'd avoid SSRIs like the plague, despite the fact I've only taken one. They just don't seem worth the risks, and for disorders that can be treated without medication at least, they seem like a quick-fix solution to a purely psychological problem. I'm not an expert on OCD though (you do have OCD right?), not sure exactly what the treatment options are for that. The very mechanism by which they work scares me, it seems like blocking the drain in a bathtub full of rubidium, then turning the tap on. I don't doubt that long term SSRI use can cause lasting damage/changes to the brain. The simple fact that they can have lasting discontinuation symptoms gives some weight to that.
Don't let me put you off taking them if they're working for you though.
Cue some smartass trying to correct everything I've just said
