Is Tsuma ni Damatte Sokubaikai ni Ikun ja Nakatta hentai?
English title: I Shouldn't Have Gone To The Doujinshi Convention Without Telling My Wife
Yes
Rated Rx (Hentai) on MyAnimeList.

OVA · 2023 · 2 episodes · Rx - Hentai
Hentai
Our heroine, Yumiko, is left home alone as her husband leaves on a business trip (it’s implied he lied and just went out to Comiket). She discovers her husband’s porn cache and gets horny after reading a bit through it. The the neighbor’s kid, Kazuya, comes over to deliver some handouts to her and catches her in the act… (Source: 2D Market)
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