It's a type of fingering surely?
Either you insert two lots of two fingers and then gently open her up, or you have both index fingers in her vadge and both middle fingers up her bum.
(Bazongaloid, Mon 14 Feb 2011, 9:30, 2 replies, latest was 15 years ago)

The shocker!

( sporters I’m sincerely gratitude to you, Mon 14 Feb 2011, 9:32, Reply)

Or you set two ultra-fertile midgets on your missus

( Labia Majora You keep on talking but it makes no sense at all, Mon 14 Feb 2011, 9:33, Reply)

You would end up with twins.

(Bazongaloid, Mon 14 Feb 2011, 9:34, Reply)

And that's just you
Your missus would have a litter.
( Labia Majora You keep on talking but it makes no sense at all, Mon 14 Feb 2011, 9:34, Reply)