nothing wrong with porn at all. My wife likes to watch it with me sometimes. I finished her the other day from behind while facing the tv with some real nice porn on. Not some nasty man oriented porn pros degrading shit. Just 2 attractive people getting it on, and they BOTH actually look like they are enjoying it, vs a girl being paid and uncomfortable to be there.
My wife and I used to as well and that's fine. The problem is she's not involved in it and it has taken my attention away from her sexuality.
Next, if your not attracted to your wife any more because "she had kids", then she needs some help to "rehab" from having kids. It`s very tough on her body, nutrients are sucked out, that ab muscles actually separate so it can expand so large, forget about if she had a c-section. Those things need to be trained just to get back to normal. Imagine you broke a leg, the muscle is cut back to the bone for a rod, there would be major rehab.
That is not it all at, she's very sexy and does not look like she's had 2 kids at all.
Next, maybe your wife is just lame in bed... at least compared to porno. Get her to be more freaky, SLOWLY! Lots of women are just lame in bed, or turn into f`ing mommy`s after kids. What I mean is they get very conservative and lose focus of their own beauty, "feeling like a woman", feeling sexual. That needs to be encouraged along. If you doubt this concept, go anyplace that has lots of little kids. You will see a few tight moms, lots of chunkers, sweat pants, yoga pants (some are about to rip). When there I like to play a game called "count the pony tails". The epitome of, no mommy time, not feeling sexy and all about the kids combined into one.
I`ll agree, to much of the wrong porn can de-sensitive you to anything in the realm of "normal sex".