Marital sex just needs to be varied. If the couple won't do it together, then clearly they will still do it secretly each separately! I think this home variation is acceptable, in any case it is not as extraordinary as entertaining a large group of swingers. My wife and I once invited me to one of these, against her this clip is just sex puritanical family!
That video made me feel a little ambivalent. :-) I kind of got excited seeing a beautiful naked Japanese woman in front of me, but on the other hand I got a good laugh watching hungry Japanese men watching me having sex - they are all so chubby and round, like koloboks. :-) Where's the famous Japanese slimness? Probably eating in peace, being led away for the last time by American fast food.
♪ I want to have hard sex ♪