Bored and curious, I stumbled upon my husband's friend jerking off in our guest room. His massive cock throbbing, I couldn't resist. I joined him, sucking his dick until he was rock hard. Then, I climbed on top, riding him in missionary and cowgirl, my big tits bouncing. He pounded me hard in doggy style, filling my pussy with his hot cum. I left him, my thighs dripping, eager for my husband to find out.