One of the best thing I saw and my bf is a little awkward

It's been a few days now and he is still awkward...

Last week, i 've been gone for a few days on a work trip. I was supposed to come back on saturday, but i managed to arrive late friday night. I didnt told my bf because i wasnt sure to be able to make it. So i arrived home late friday night and since the light were off, i tiptoed into the house without making too much noise. Thats when i heard some fucking and moaning sound coming from our bedroom. I silently got there and thats when i saw it. A few candles were lit, a glass of wine empty on her bedside table and him, naked on our bed, listening to an erotic audiobook. His eyes were closed, his hands going from his cock and moaning softly. I was astonished , i quietly sat on the sofa in the corner and just watch him. It was sooo fucking hot. After a few minutes his body was wracked with a big orgasmic contraction. Then he saw me...with a raspy voice she said "oohh please fuck me !" And i did, his body was so hot and wet.

The next morning he kept apologizing saying that it wasn't ok, that he was ashamed. I keep saying to him that i found this sooo hot.