No. We have no idea what intelligent life from another planet would be like, but the odds that it would be anywhere near human morphology is astronomical. It wouldn't be like having sex with a hot chick where the only difference from a regular hot chick is blue skin. It wouldn't even be like having sex with in a turian or something equally exotic. It would be like having sex with an intelligent starfish or a sentient piece of coral. Some of y'all may be into that, but not me.
No, because it will be like Xenomorphs injecting eggs into your throat to hatch their younglings or probing your anus, not like in mAss Effect, Star Wars or Star Trek.