Was just too imbarassed as a teen to do something like this., you really got the urge to masturbate with while watching porn. Grew up and got girl friends. However nowadays... think it would be great, perhaps jerking or wanking each other would be better though.
I heard from a mate that a mate of his had a mate and the two would wank together watching porn.
But I find it bizzarre that you would ask such a thing.