OMG! Got horny watching someone else fuck!

The other day I left my partner alone with a prospective tenant while we viewed an apartment. When I came back, I caught the two of them having sex! I was totally shocked and wanted to barge in straight away, but as I stood there watching them, I suddenly got really horny! I was really excited to secretly and quietly watch the sex and I thought it would be exciting to be the voyeur for once! Since they couldn’t see me, I took off my pants and fingered my wet pussy, imagining the horny process myself. I got hornier and wetter until I had a powerful orgasm! That was a really crazy experience! Oh yes, and I even came myself! Excited, huh?