I'm happily married to my childhood friend Miku, but I'm a huge fan of big tits and harems. I've gotten so into this that I can't get an erection from just my wife... So my wife, desperate to get pregnant, invites her friend Ena over to our house and suggests a threesome. Confused by this sudden turn of events, I can't contain my excitement in front of two busty beauties... When Ena's husband finds out about this threesome, he suggests swapping wives...