Describe a couple vs couple sexfight between two married couples. The first married couple is comprised of an American guy who is 45yo 5'11" 180lbs with a 7" cock and a Chinese woman who is 39yo 4'10" 105lbs with 34c breasts. The second married couple is comprised of an Irish guy who is 48yo 5'8" 155lbs with a 6" cock and a Vietnamese woman who is 41yo 5'4" 115lbs with 34a breasts. The sexfight begins after having dinner at the first couple's apartment.