Screaming F302

A 13 year old took his Kreos while watching Stargate Atlantis and came up with this after hearing about 'cross overs'.  " Look Mom, Starscream made it to the Pegasus Galaxy.  Wonder if he would get along with the Wraith or Col. Sheppard?"

And yes there is an excellent crossover story I read on fanfiction of these two but for the life of me can't remember the name of it, but it was funny yet pretty seriously plausible.