I also thought I wouldn't be able to bf in front of my dad. Within days I was quite happy for him to come and stroke DS1's cheek whilst I was bfing. There is no 'strange' feeling about it all. My mum bf me and my 2 sisters, so he sees it as entirely normal. I still wouldn't want him seeing me in my bra and knickers though, although when we lived in Cyprus, I was regularly in a bikini. Bfing feels somehow completely different.
I lied when I earlier said that I'd never been touched when bfing. A very very lovely MW actually, completely on my request, physically showed me where to put my fingers to express milk for DS2 who was in the SCBU/NICU. I'd said to her that I couldn't hand express (although I'd fed DS1 for 22m), and she assured me that I could. Managed to with no problems
Anyway, when it came to feeding, noone needed to lay a hand on me. DS1 was placed face to breast whilst I was lying on my side (2 hrs post c/s), and he latched on and fed for an hour. DS2 wasn't supposed to be bfing at all as he was too ill I said that I wanted to hold him skin to skin to help with expressing milk for him (he was nearly 24 hours old, and still on a drip at that point). Anyway, he turned his head, opened his mouth, latched on and fed. I just said to the SCBU nurses that since he'd initiated feeding, he was obviously fine to do so. He never looked back and bf fine from then onwards.
With regards to the c/s, consider your underwear as the gown has an open back. Thongs wouldn't look good! I had a catheter after the op. They also inserted some sort of pain relief pessary (up the bum) during the op. I told DH after the op that they'd forgotten to do it (they'd asked in advance I think?), but he said 'don't worry, I saw them do it . You could no doubt request not to have this if it worries you.
DS2 was a VBAC, but in case of a ec/s if things went wrong, I got a severe bikini wax a week or so before my due date. I had terrible razor burn after DS1's c/s. This was more irritating than the scar pain. So if I was you, I'd consider that, or at least shave yourself (or ask your DP/DH) when you can do it with a fab quality razor and shaving gel.