Drunk and horny, I find myself alone with my friend's sister. She's always been off-limits, but tonight, her sultry glances and suggestive touches push me over the edge. I lean in, capturing her lips in a passionate kiss. She moans, pressing her body against mine. I lift her dress, revealing her lacy thong. She's wet, ready. I slide my hand inside, feeling her heat. She gasps, then whispers, "Not here. My room." We stumble to her bedroom, our clothes falling off along the way. I lay her down, appreciating her curves. She spreads her legs, inviting me in. I tease her, licking and sucking, making her squirm. Then, I slide inside her, feeling her tightness envelop me. She claws at my back, urging me on. We fuck hard, fast, our bodies slapping together, until we both climax, panting and spent.