Obviously watching porno but.....

.........why not use the fact that they've got hard-ons in order to pleasure each other instead of each boringly tossing himself off. I'd bank on the three at the end most likely to get a bit 'experimental'. 

Indian titty-suck earns him a face-splattering

Lucky lad! Wish I was there to lick that Desi spunk off his face while it was still warm - and to snowball it into his mouth.

Two kids getting frisky.

The jokey antics will stop once they each get a cock in their mouth, in double-suck 69 style. Right now though, I sure could lick the shit outta both of them.