So, I had the misfortune of walking in on my dad watching .?

The Internet router is in the computer room, and I thought the connection was dead because my laptop wasn't getting a very good signal. I walked to the computer room and noticed the light on so I umed my dad was awake, and I went in. To my surprise there was a picture of some girl going another guy some oral action. I acted like I didn't see it and went along with my whole reset the router type spiel. Anyways, I've always heard stories of my friends walking in on parents having and they dusted it off as a non-traumatic event, but this kinda affected me a little bit more. I understand he's a guy, and from my ventures around the Internet I've seen my fair share of s, and I'm 15. This shouldn't make me feel like I have to avoid him to avoid confrontation about this incident. Will the awkward feeling go away with time as the chance he'll confront me goes away? I feel like a child for reacting this way too...