My Ideal Life in Another World Vol. 4

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. Misha's childhood friend, Chise, comes to work as a maid in Misha and Norun's house and Norun ends up having sex with her as well. Wanting to learn more about Chise's magical abilities, Norun and Chise go into town which somehow leads to them both getting naked in public and from there more sexy escapades follow!