Three pairs of beautiful mothers and sons hoping to conceive their sons' children join this incestuous bus tour, visiting fertility hot springs and enjoying creampie sex to the fullest! They pray for pregnancy at a shrine that will help them conceive, and then have creampie sex until the morning at a fertility hot spring! They cling to the sacred object of a huge penis and have standing doggy style with their sons, cumming until their balls are empty! Fertilization is confirmed with a pregnancy test, and 10 months later, the pregnant mother prays for an easy delivery!