They're all females with big breasts, thighs, and butts with slightly curvy hips. They're all 6'5". Start however you want.

Xenomorph: Hehe, lookie here!~

Deathclaw: Wow, he's got the looks~

Demogorgon: Rawr~

Sangheili: I wonder if he could handle my thighs~

Yautja: He doesn't seem like a threat. I think he's kinda cute~

Wraith: Yeah, so cute~

Death Angel: Hehehe~