DD was OP and after a long labour she still refused to turn, so she was born by ventouse. I was never told that I was going to have an episiotomy, but my MW told me that I had the typical J-shaped scar when she examined me post-natally.
At the 6-week check up, I asked the doctor to check out my perineum because the scar still felt quite stiff and tight, and she told me that it was healing OK, even though it was a bit tighter than usual. It didn't get any better, and at 12 weeks I went back to a different doctor at the surgery, who agreed that it was still quite stiff and suggested it was still early days and that time and sex (!) would help, but to come back if it didn't because she could refer me to the gynae, although they may be reluctant to help until they are confinced that I'm done child-bearing.
So far, I've only been able to take a little bit of DH during sex until it gets really painful. I have plenty of libido and natural lubrication, so that's not a problem. I also get sore putting stress on the scar (twisting etc), and it's still very stiff.
I'd really like to have stories from other women who've had episiotomy scars that healed well in the end. It's starting to freak me out!