JUR-474 Absolutely Cannot Let My Wife Know: My Big-Titted Mother-in-Law Got Pregnant with My Child... A Two-Day, One-Night Hot Spring Trip Where I Forgot Myself and Went Wild with Unprotected Creampies - Marin Hyaku no (Marin Hyakuno)

The male protagonist's mother-in-law, Momo no Marina, is a voluptuous, busty mature woman who unexpectedly becomes pregnant with his child. To keep this secret, the two embark on a hot spring trip for a two-night, one-day clandestine rendezvous. In the intimate seclusion of the hot spring inn, they abandon all restraint, immersing themselves in frenzied passion with repeated bareback creampie sex. The mother-in-law's ample body and alluring curves leave the protagonist insatiable, as they indulge in taboo mother-son incestuous acts from the hot spring bath to the guest room, ultimately deepening their forbidden bond amid waves of climactic ecstasy.