Hey hun!
I dont know if you remember me but our boys were born on each other's due dates!
Anywho.. ;)
I had an episiotomy with DS. Had the apsolute WORST recovery. Couldnt stand up for longer than 10 minutes for the first 3 months afterwards. Had to have a large skin tag removed. Got better so i could then stand but DTD always hurt.. up until DD was born.
With DD i had only 1st degree tearing. No need for an episiotomy, even though she was roughly the same size as DS. Doctor gave me stitches and honestly, i have never been better! DTD does not hurt one bit. I feel back to my pre babies state. I didnt need pain killers or ice after she was born. I was walking as if nothing happened. With DS i was on pain killers and ice for months.
So yeh, not necessarily will you have to have one the second time round and in my case having a second baby actually fixed everything up down there.
Best of luck!

