High-speed waist movement creating dick afterimages with mass.
i mean that is still 1 at a time.
E.g, if he thrust in and pull out of Sistinia in 0.1s, then go around the other 2 at the same rate, in 1 hour, its still, under rigorous definition, and functionally 2 person-hours worth of sex(1 hour for the inserter and 1 hour of the receiver split between the receivers)
In contrast, supposed he can actually have sex with Sistinia, and then do the above between the other 2 less interesting girls, then the total would be 4 person hours worth of sex. (1 hour of Sistinia, 2 hour of inserter(1 hour net with Sistinia, the other split between the 2 other, and 1 hour of receive split between the other 2)
So, yeah, not the same.