kk, i'll grant you this is a wierd one - if i'd been forced to watch my parents screw i'dve gouged my eyes out on the spot i reckon - but assuming they weren't doing nothing but having good old fashioned fuck me through a blanket w/ a whole in it while thinking real HARD 'bout jesus catholic sex sans whips'n'choir-boys it ain't that big a deal - they weren't throwing the kid into the mix, were they? or listening to tori amos at max volume while the guy was jacking off into her hair (oh, wait, that's my thing!)
human beings are fucking strange little creatures - really, ask any emunclaw resident