Have any one tried 3some incest sex

Dear xossips,

We couples planned for 3some and finally settled for incest.

I like to see my wife fucking with his little brother.

Even I have green signal from my wife.

But my wife brother is not able to seduce..

any good idea to seduce him,

my wife told she will not seduce. it is my job. but reeady to take his load..

Any one tried and suceed if any good ideas please share