No wonder Eddie Murphy played the donkey in "Shrek" ... his daughters got ASS.

19-year-old Shayne and 24-year-old Bria -- Eddie's children with ex-wife Nicole Murphy -- recently posed for some lingerie modeling shots and wow ... just wow. They grew up fast.

Bria and Shayne have been aspiring models for a while, for obvious reasons, but this is the first time we've ever seen them like this. No complaints whatsoever.

It's a really tough call ... but we still gotta ask ...