My Ideal Life in Another World Vol. 6.5

Our protagonist used to be a 40 year old male virgin until he masturbated too much and dies from a technobreak. He finds himself reincarnated in another world where men can only go into heat and procreate once per year yet he has a special ability to go into heat whenever he pleases. Lovemea, Norun's next door neighboor succeeds in seducing him and making her his third wife. After a day filled with intense lovemaking, Lovemea offers to prepare a bath for Norun. Little did he know that there was more than a simple bath awaiting him!