I booked a private yoga session with a new instructor to surprise my boyfriend. I told her my boyfriend was working in the other room, so we had the house to ourselves. She started the class normally, but I quickly noticed her eyes wandering. She kept complimenting my leggings, saying they were "a little wet" and that I must be excited for the class. Things got intense when she moved me into poses on all fours and lying on my back. Her stretches turned into lingering touches, and her massage went way below the waist. "Shh," she whispered, "your boyfriend will hear us." The risk of getting caught made it so much hotter, and I let her take control, unable to hold back my moans. But then, the door opened. My boyfriend was standing right there. He saw everything—the teacher between my legs, the mess we made. For a second, I thought he'd be mad. Instead, he smiled and asked, "Can I join?" Watch as my private yoga session turns into an unexpected threesome, where my flexible body gets put to the test by both my teacher and my boyfriend.