Seeing Him In Panties Turned Me On

Been going out for a few months with this guy and he seems pretty normal to me. He likes normal guy stuff, he really gets me off in bed, I like him a lot. He spent the night last night, and I woke up this morning without waking him to take a shower. I was still trying to be quiet when I got out of the shower, and when I came down the hall I saw him trying on my pink satin panties. I didnt walk in and catch him in the act, because I didnt have a clue what to say. I went back to the bathroom and made some noise, then came back and he was lying in bed pretending to wake up. He has a really cute butt, and he looked really cute in them and I got excited seeing him in my panties and I cannot stop thinking about seeing him in more of my panties.