That was nice. Not groundbreaking but nice.
The porn scenes didn't serve the story though.
I have a hard time with stories that are about true love, but at the same time the characters talk and act like they are in an AV, getting all technical. It creates a gap between genuine affection and "soulless" sex. Somewhat like Nadeshiko Hiyori.
"My jaw is sore" made me lol.