Um, no, no, no, my skin did most certainly NOT go back to normal.
OTOH, I went through the pregnancy after 35, and I understand the story is different for some (many?) women under 35 because their collagen still rebuilds itself or some such thing...
My entire front looks like exactly what happened, a huge inflation and an equally huge deflation. Finding a bra that fits is my biggest challenge. I used to be "more bounce to the ounce" now I'm "more flap to the flop".
I have NO IDEA how to fit a bra to my current shape. Tube socks perhaps
I don't have twin skin (where you can fold your skin over itself, tuck it into your waistband, etc) and I did not have the dreaded diastasis recti, where the muscles of the abdomen separate. I do have a saggy belly with a c-section scar. I am back to my pre-pregnancy weight but my body looks much much different and my waist size is still three inches bigger than pre-pg. Not bad considering all I guess.
OTOH, the rest of my body ROCKS if I do say so myself. I am strong, super strong, from carrying two babies for two years. I have fantastic shoulders, arms that look like I spent hours in the gym, legs that have muscles I only dreamed about having before, and at the risk of sounding totally vain, a really really fine a$$. Where that one came from I have no idea
presumably has something to do with the aforementioned carrying of the twins for two years straight.
So it's a mixed bag. I'm not the same ole' gal with the same ole' bod and it's hard to get used to that, especially when looking at my front side in the mirror. But I'm strong and healthy and that shows too, and one day I will find a bra that fits!
Sending you springy skin vibes, mama!