I thought that sequence was from "One Of My Turns"? Comfortably Numb is the one where he's reprocessed by maggots into his Nazi alter-ego.
Anyway. Congrats, LAD! I hear what you're saying about nervousness / physical awkwardness - as is so often the case when it comes to sex, there are enough issues and insecurities baked into the cake even without CSA in the picture. I don't know ANYBODY whose first time went entirely well or pridefully. And yeah, it's not like you wake up the next morning with spider-powers. I'm just glad you got that measure of acceptance and desire - it may well spur you to developing deeper relationships with other girls down the road.
"Don't think it hasn't been a little slice of Heaven just because it hasn't!" --Bugs Bunny