Searching for a story

I’m looking for a story, it was about an alien prince named Sirius who was going to earth and flirting with a woman for a few weeks before abducting her and fucking her. They originally met in a club setting, and he was disguised as a blonde man. I remember there being some sort of dildo bed, one that moved and was like a sentient water bed that tied her wrists and ankles down and formed a dildo from the metal to prepare her for the alien cock. If anyone knows anything even remotely like this please me know, I think it was on literotica but I’m not sure. It was and still is one of the best things I have ever read and I’d love to read it again. Thanks in advance!

Source: reddit.com/r/Erotica/comments/lmfs01/searching_for_a_story