Look at the girls again and use your brain...
1. Were girls in that time that slim? No, they were more roundish than now
2. Did they wear hair cuts that appeared in the 90s? No fucking way..
3. Do you see the tan lines on the girls ass, the one on the right? Looks like bikini.
Its a fake and the only reason why the chicks are positioned that way is that we would see their shaved cunts .. ;-)