I was visiting my sister's place and stumbled upon her husband, a hardcore fetishist, in the middle of a steamy session with a gorgeous brunette. It turns out that he has a thing for pearl necklaces, and he wasn't about to let me miss out on the action. The sight of him plunging his massive member into her eager mouth had me rock hard. I couldn't resist the urge to join in, and before I knew it, I was taking turns with my sister, getting our throats stretched by his colossal cock. After some deepthroating action, we both got to enjoy his girthy shaft in our tight, wet pussies. The sight of us bouncing on his cock, our bodies intertwined, was enough to drive any man wild. The sight of us, two milfs, getting pounded by the same monster cock was a sight to behold. We rode him hard, our moans echoing through the house, until we were both drenched in his hot, sticky load. It was a wild Argentinian group sex session, and I'm sure my sister's husband will be back for more.