Sure, but then they come from outer space, are they wearing pants?
If you'd like to think they didn't, you'll love the big, black Martian Dildo from the Monster Dong collection. Crafted from premium, plush, liquid silicone, it has reptilian form with a pronounced glans and textured, scaley bulges that you will definitely feel as it slides inside of you. With a subtle, sculptured flare at the base, it's safe for both anal and vaginal play. It also features a sturdy suction cup so you can attach it to any flat, smooth surface for hands free fun - or a harness for some partnered role play.
However you play, use a liberal amount of water-based lube with your Martian, and clean it after use with warm, soapy water and/or anti-bacterial toy cleaner.