honorable mention for the mathematical quiz with a twist

two persons got it right.
mr shashi t and mr vinod vyas.
here is the answer.
Here is the answer with the explanation:
Shilpa(MOM 'S') is 21 years older than Raju (Kid 'K').

S = K + 21

In 6 years from now the Shilpa will be 5 times as old as the child.

S + 6 = ( K + 6 ) x 5

K + 21 + 6 = ( K + 6) x 5

K + 27 = 5C + 30

-3 = 4K

K = -3/4

The child is -3/4 year old, that's -9 months. Child will be born in 9 months. So, right now, Shilpa's getting laid. And the hubby is on top of her or can we presume it as a case of "WOMAN ON TOP"